Class 9 Exam > Class 9 Questions > (5+√8)+(3−√2)(√2ͨ...
Start Learning for Free
(5+√8)+(3−√2)(√2−6) is
- a)positive and rational
- b)negative and rational
- c)positive and irrational
- d)negative and irrational
Correct answer is option 'C'. Can you explain this answer?
| FREE This question is part of | Download PDF Attempt this Test |
Most Upvoted Answer
(5+√8)+(3−√2)(√2−6) isa)positive and rat...
Given Expression:
(5+√8) + (3-√2)(√2-6)
Solution:
Step 1: Simplify the expression
First, simplify the expression inside the parentheses:
(5+√8) + (3-√2)(√2-6)
= 5 + √8 + 3√2 - 6 - 3√2 + 6 (Use FOIL method)
= 5 + √8 - 6 + 6
= 5 + √8
Step 2: Simplify further
Now, simplify the expression 5 + √8:
5 + √8 = 5 + √(4*2) = 5 + √4 * √2 = 5 + 2√2
Therefore, the simplified expression is 5 + 2√2, which is a positive irrational number.
Conclusion:
The given expression (5+√8) + (3-√2)(√2-6) simplifies to 5 + 2√2, which is a positive irrational number. Therefore, the correct answer is option 'C' - positive and irrational.
(5+√8) + (3-√2)(√2-6)
Solution:
Step 1: Simplify the expression
First, simplify the expression inside the parentheses:
(5+√8) + (3-√2)(√2-6)
= 5 + √8 + 3√2 - 6 - 3√2 + 6 (Use FOIL method)
= 5 + √8 - 6 + 6
= 5 + √8
Step 2: Simplify further
Now, simplify the expression 5 + √8:
5 + √8 = 5 + √(4*2) = 5 + √4 * √2 = 5 + 2√2
Therefore, the simplified expression is 5 + 2√2, which is a positive irrational number.
Conclusion:
The given expression (5+√8) + (3-√2)(√2-6) simplifies to 5 + 2√2, which is a positive irrational number. Therefore, the correct answer is option 'C' - positive and irrational.
Free Test
FREE
| Start Free Test |
Community Answer
(5+√8)+(3−√2)(√2−6) isa)positive and rat...
The answer is 11root2 _15 If we find out the absolute value it is 11root2 + 15
Attention Class 9 Students!
To make sure you are not studying endlessly, EduRev has designed Class 9 study material, with Structured Courses, Videos, & Test Series. Plus get personalized analysis, doubt solving and improvement plans to achieve a great score in Class 9.
|
Explore Courses for Class 9 exam
|
|
Top Courses for Class 9View all
(5+√8)+(3−√2)(√2−6) isa)positive and rationalb)negative and rationalc)positive and irrationald)negative and irrationalCorrect answer is option 'C'. Can you explain this answer?
Question Description
(5+√8)+(3−√2)(√2−6) isa)positive and rationalb)negative and rationalc)positive and irrationald)negative and irrationalCorrect answer is option 'C'. Can you explain this answer? for Class 9 2024 is part of Class 9 preparation. The Question and answers have been prepared according to the Class 9 exam syllabus. Information about (5+√8)+(3−√2)(√2−6) isa)positive and rationalb)negative and rationalc)positive and irrationald)negative and irrationalCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for Class 9 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for (5+√8)+(3−√2)(√2−6) isa)positive and rationalb)negative and rationalc)positive and irrationald)negative and irrationalCorrect answer is option 'C'. Can you explain this answer?.
(5+√8)+(3−√2)(√2−6) isa)positive and rationalb)negative and rationalc)positive and irrationald)negative and irrationalCorrect answer is option 'C'. Can you explain this answer? for Class 9 2024 is part of Class 9 preparation. The Question and answers have been prepared according to the Class 9 exam syllabus. Information about (5+√8)+(3−√2)(√2−6) isa)positive and rationalb)negative and rationalc)positive and irrationald)negative and irrationalCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for Class 9 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for (5+√8)+(3−√2)(√2−6) isa)positive and rationalb)negative and rationalc)positive and irrationald)negative and irrationalCorrect answer is option 'C'. Can you explain this answer?.
Solutions for (5+√8)+(3−√2)(√2−6) isa)positive and rationalb)negative and rationalc)positive and irrationald)negative and irrationalCorrect answer is option 'C'. Can you explain this answer? in English & in Hindi are available as part of our courses for Class 9.
Download more important topics, notes, lectures and mock test series for Class 9 Exam by signing up for free.
Here you can find the meaning of (5+√8)+(3−√2)(√2−6) isa)positive and rationalb)negative and rationalc)positive and irrationald)negative and irrationalCorrect answer is option 'C'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of
(5+√8)+(3−√2)(√2−6) isa)positive and rationalb)negative and rationalc)positive and irrationald)negative and irrationalCorrect answer is option 'C'. Can you explain this answer?, a detailed solution for (5+√8)+(3−√2)(√2−6) isa)positive and rationalb)negative and rationalc)positive and irrationald)negative and irrationalCorrect answer is option 'C'. Can you explain this answer? has been provided alongside types of (5+√8)+(3−√2)(√2−6) isa)positive and rationalb)negative and rationalc)positive and irrationald)negative and irrationalCorrect answer is option 'C'. Can you explain this answer? theory, EduRev gives you an
ample number of questions to practice (5+√8)+(3−√2)(√2−6) isa)positive and rationalb)negative and rationalc)positive and irrationald)negative and irrationalCorrect answer is option 'C'. Can you explain this answer? tests, examples and also practice Class 9 tests.
|
|
Explore Courses for Class 9 exam
|
|
Suggested Free Tests
Test: The Fundamental Unit of Life- Case Based Type Questions- 1
Test | 10 questions
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
|
© EduRev
|
Education Revolution
|
|
Signup to see your scores
go up within 7 days!
Access 1000+ FREE Docs, Videos and Tests
Takes less than 10 seconds to signup