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The value of cos10^(@)-sin 10^(@) is...

The value of `cos10^(@)-sin 10^(@)` is

A

positive

B

negative

C

0

D

1

Text Solution

Verified by Experts

The correct Answer is:
A
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ML KHANNA-TRIGONOMETRY RATIOS AND IDENTITIES-PROBLEM SET (2) ( MULTIPLE CHOICE QUESTIONS)
  1. If A=sin^(8) theta + cos^(14) theta, then for all values of theta,

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  2. If theta , phi are acute, sin theta = 1//2 , cos phi = 1//3, then [ t...

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  3. The value of cos10^(@)-sin 10^(@) is

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  4. Which of the following is correct ?

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  5. Maximum value of 24 sin theta+7 cos theta is

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  6. The minimum value of 3 sin theta + 4 cos theta is

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  7. Maximum value of 3 cos theta + 4 sin theta is

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  8. The minimum value of 3 cos x+4 sin x+8 is:

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  9. Prove that the value of 5 cos theta + 3cos (theta + pi/3) +3 lies bet...

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  10. If ale 3 cos x + 5 sin ( x - pi //6) leb for all x, then (a,b ) =

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  11. If a cos theta - b sin theta = lambda, then AA real theta

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  12. sqrt( 3) sin x + cos x is maximum when x is

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  13. The set of values of 'a' for which the equation sqrt(a) "cos" x -2 "...

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  14. Given 12 sin theta + 5 cos theta =2 x^(2) - 8 x +21 and theta and x a...

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  15. If cos 25^(@) + sin 25^(@) =0, then: cos 50^(@)=

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  16. The equation sin x ( sin x + cos x ) = k has real solution if and only...

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  17. The maximum value of 12 sin theta -9 sin ^(2) theta is

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  18. cos2 theta+2 costheta is always

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  19. If l,g are the least and greatest values of 9 cos 2theta - 24 cos thet...

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  20. The ratio of the greatest value of 2-cos x+s in^2x to its least value ...

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