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The values of x and y which make the following solutions true are: cos x° = sin 52° and cos y° = sin (y° + 10)
  • a)
    x = 52°, y = 30°
  • b)
    x = 38°, y = 40°
  • c)
    x = 48°, y = 52°
  • d)
    x = 40°, y = 50°
Correct answer is option 'B'. Can you explain this answer?
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The values of x and y which make the following solutions true are: cos...
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The values of x and y which make the following solutions true are: cos...
1) cos x =sin 52
2) cos y =sin(y+10)
for option B,
let x=38
y=40
now by putting these values in equation 1 and 2
cos 38=sin52
which is true,
also,
as for eq2
cos 40=sin(38+10)
or, cos40=sin48
which is also true
hence, Option B is correct
Alternative
it is given that
cosx=sin52
sin(90-x) =sin52
90-x=52
x=38
also, for eq2
cosy=sin(y+10)
sin(90-y) =sin(y+10)
90-y=y+10
y=40
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The values of x and y which make the following solutions true are: cos x° = sin 52° and cos y° = sin (y° + 10)a)x = 52°, y = 30°b)x = 38°, y = 40°c)x = 48°, y = 52°d)x = 40°, y = 50°Correct answer is option 'B'. Can you explain this answer?
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The values of x and y which make the following solutions true are: cos x° = sin 52° and cos y° = sin (y° + 10)a)x = 52°, y = 30°b)x = 38°, y = 40°c)x = 48°, y = 52°d)x = 40°, y = 50°Correct answer is option 'B'. Can you explain this answer? for Class 10 2024 is part of Class 10 preparation. The Question and answers have been prepared according to the Class 10 exam syllabus. Information about The values of x and y which make the following solutions true are: cos x° = sin 52° and cos y° = sin (y° + 10)a)x = 52°, y = 30°b)x = 38°, y = 40°c)x = 48°, y = 52°d)x = 40°, y = 50°Correct answer is option 'B'. Can you explain this answer? covers all topics & solutions for Class 10 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for The values of x and y which make the following solutions true are: cos x° = sin 52° and cos y° = sin (y° + 10)a)x = 52°, y = 30°b)x = 38°, y = 40°c)x = 48°, y = 52°d)x = 40°, y = 50°Correct answer is option 'B'. Can you explain this answer?.
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