All India GMAT Group

(x2 + 1)2 - x2 = 0 has
  • a)
    no real roots
  • b)
    4 real roots
  • c)
    2 real roots
  • d)
    1 real root
Correct answer is option 'A'. Can you explain this answer?

Anuj Yadav answered  •  6 days ago
Option (A)

Given, 
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Rakshya Pandey asked a question

Economist: To increase exports, the government of Targania has planned to reduce the price at which it exports timber and has, therefore, reduced the price at which it buys timber from local manufacturers. Even though sales will increase, the plan, because of the lower profit margins, will lead to a decline in profits for timber manufacturers, forcing some of them into losses. Therefore, in the interest of the local manufacturers, the government should shelve the plan to increase the exports.
Which of the following, if true, casts the most doubt on the economist’s recommendation?
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Ankit Arya asked a question

Although the journal Social Text was never at the forefront of publishing articles on feminism and never debated whether capitalism was the source of women’s oppression in 1970s or whether male supremacy was itself a systematic form of domination, it is not clear whether social feminist’s classification of the journal as the one run by “boy’s club” could have been completely justified till recently. There could have been many reasons that the journal’s mission statement as set out in its first prospectus in 1979 did not take notice of the burning issues feminists were then discussing. May be triumvirate of founding editors were too focused on Marxist high theory to consider gender alongside economic class as an important mode of social organization and oppression, or on the other hand they may have simply chosen on purpose to not include feminism specifically in its charter.
The recent paper by Rosa Luxemburg suggests that the first prospectus contained the seeds of its own feminist undoing. The founders demarcated fields of focus for the journal that could hardly be explored without attention to gender, sexuality, and the historical experiences of women. They were rather interested in “everyday life,” “mass culture,” and “consumer society”. Hence, the little feminist work that appears in Social Text is in the realm of cultural analysis not revolutionary praxis and is often buried in the back of the journal in “Unequal Developments,” the section that offers reviews and experimental writing.
 
For example, in the second edition of the journal in the section Unequal Developments, Christine Holmland performs a thorough feminist dissection of the then-current Disney film ‘The North Avenue Irregulars’, showing how this comedy about a group of church ladies who take on the local mafia superficially celebrates, but finally deflates the idea of women’s activism, and along the way reinforces gendered roles at every level of social life.
What does the author imply when he states “May be triumvirate of founding editors were too focused on Marxist high theory to consider gender alongside economic class as an important mode of social organization and oppression”?
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Ripon Roy asked a question

Although the journal Social Text was never at the forefront of publishing articles on feminism and never debated whether capitalism was the source of women’s oppression in 1970s or whether male supremacy was itself a systematic form of domination, it is not clear whether social feminist’s classification of the journal as the one run by “boy’s club” could have been completely justified till recently. There could have been many reasons that the journal’s mission statement as set out in its first prospectus in 1979 did not take notice of the burning issues feminists were then discussing. May be triumvirate of founding editors were too focused on Marxist high theory to consider gender alongside economic class as an important mode of social organization and oppression, or on the other hand they may have simply chosen on purpose to not include feminism specifically in its charter.
The recent paper by Rosa Luxemburg suggests that the first prospectus contained the seeds of its own feminist undoing. The founders demarcated fields of focus for the journal that could hardly be explored without attention to gender, sexuality, and the historical experiences of women. They were rather interested in “everyday life,” “mass culture,” and “consumer society”. Hence, the little feminist work that appears in Social Text is in the realm of cultural analysis not revolutionary praxis and is often buried in the back of the journal in “Unequal Developments,” the section that offers reviews and experimental writing.
 
For example, in the second edition of the journal in the section Unequal Developments, Christine Holmland performs a thorough feminist dissection of the then-current Disney film ‘The North Avenue Irregulars’, showing how this comedy about a group of church ladies who take on the local mafia superficially celebrates, but finally deflates the idea of women’s activism, and along the way reinforces gendered roles at every level of social life.
What does the passage suggest about the kind of articles published by Social Text journal in relation to feminism?
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Saket Shankar asked a question

During a recent excavation, fragments of a ceremonial urn dating back around 1500 years were discovered in a New Mexico canyon. Prior to this finding, it was believed that the Pueblo tribes who lived in the area around that time made their pottery by hand. However, further investigation revealed that the light brown clay used to create the urn, popularly known as ‘golden clay,’ could only have been fashioned into an urn with the use of a pottery wheel.
Which of the following, if true, would, together with the information above, provide the best basis for the conclusion that the fragments of the urn are evidence that the Pueblos used the pottery wheel?
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In general, psychology is the study of human thought and consciousness and includes everything from the biological way in which cognitive processes occur to why people behave in certain ways. Sociology, on the other hand, is the study of society and how people interact with each other in different ways. The major differences between psychology and sociology typically concern the focal points of each field and how those foci are studied. In psychology, for example, the focus of research typically involves understanding the human cognitive process and how the brain functions in general. In sociology, however, there is a great deal of importance placed on the role that society has in the formation of human thought and action. Even though sociology does include how people think with relation to each other, human thought is not necessarily the sole focus. Also, since it studies the interactions between people, sociology can lay much more importance on actions than psychology does, stressing the importance of human behavior over cognitive responses or processes.
 
There are some ways in which both psychology and sociology are similar, however, such as the ways in which the fields cross into each other. Social psychology, for example, is quite similar to sociology in that it focuses on how people interact and how society affects the thoughts and mental activities of individual people. Explorations within sociology on how social interactions can be based on various psychological principles can also connect the two disciplines. Ultimately, someone interested in different facets of psychology and sociology is likely to study both fields and find that there are numerous ways in which they can relate and enhance each other.
Which of the following would the author most likely agree with?
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Kartik Joshi asked a question

Though the truism about Inuits having a hundred words for snow is an exaggeration, languages really are full of charming quirks that reveal the character of a culture. Dialects of Scottish Gaelic, for instance, traditionally spoken in the Highlands and, later on, in fishing villages, have a great many very specific words for seaweed, as well as names for each of the components of a rabbit snare and a word for an egg that emerges from a hen sans shell. Unfortunately for those who find these details fascinating, languages are going extinct at an incredible clip, - one dies every 14 days - and linguists are rushing around with tape recorders and word lists, trying to record at least a fragment of each before they go. The only way the old tongues will stick around is if populations themselves decide that there is something of value in them, whether for reasons of patriotism, cultural heritage, or just to lure in some language-curious tourists. But even when the general public opinion is for preservation of their linguistic diversity, linguists are finding it increasingly difficult to achieve such a task.

Mathematicians can help linguists out in this mission. To provide a test environment for programs that encourage the learning of endangered local languages, Anne Kandler and her colleagues decided to make a mathematical model of the speakers of Scottish Gaelic. This was an apposite choice because the local population was already becoming increasingly conscious about the cultural value of their language and statistics of the Gaelic speakers was readily available. The model the mathematicians built not only uses statistics such as the number of people speaking the languages, the number of polyglots and rate of change in these numbers but also figures which represent the economic value of the language and the perceived cultural value amongst people. These numbers were substituted in the differential equations of the model to find out the number of new Gaelic speakers required annually to stop the dwindling of the Gaelic population. The estimate of the number determined by Kandler’s research helped the national Gaelic Development Agency to formulate an effective plan towards the preserving the language.  

Many languages such as Quechua, Chinook and Istrian Vlashki can be saved using such mathematical models. Results from mathematical equations can be useful in strategically planning preservation strategies. Similarly mathematical analysis of languages which have survived against many odds can also provide useful insights which can be applied towards saving other endangered languages.
The passage is primarily concerned with which of the following?
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