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Which of the following is correct?...

Which of the following is correct?

A

`sin1^(@)gtsin1`

B

`sin1^(@)ltsin1`

C

`sin1^(@)=sin1`

D

`sin1^(@)=(pi)/(18^(@))sin1`

Text Solution

Verified by Experts

The correct Answer is:
B
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KUMAR PRAKASHAN-TRIGONOMETRIC FUNCTIONS -SOLUTION OF NCERT EXEMPLAR PROBLEMS (OBJECTIVE TYPE QUESTIONS)
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  2. The value of tan75^(@)-cot75^(@) is

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  3. Which of the following is correct?

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  4. If tanalpha=(m)/(m+1)andtanbeta=(1)/(2m+1) then (alpha+beta) is equal ...

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  5. The minimum value of 3cosx+4sinx+8 is

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  6. The value of tan3A-tan2A-tanA is

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  7. The value of sin(45^(@)+theta)-cos(45^(@)-theta) is

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  8. The value of cot((pi)/(4)+theta)cot((pi)/(4)-theta) is

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  9. cos2thetacos2phi+sin^(2)(theta-phi)-sin^(2)(theta+phi) is equal to

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  10. The value of cos12^(@)+cos84^(@)+cos156^(@)+cos132^(@) is

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  11. If tanA=(1)/(2)andtanB=(1)/(3), then tan(2A+B) is equal to

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  12. The value of sin""(pi)/(10)sin""(13pi)/(10) is

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  13. The value of sin50^(@)-sin70^(@)+sin10^(@) is

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  14. If sintheta+costheta=1, then the value of sin(2theta) is

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  15. If alpha+beta=(pi)/(4), then the value of (1+tanalpha)(1+tanbeta) is

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  16. If sintheta=(-4)/(5)andtheta lies in third quadrant, then the value of...

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  17. The number of solutions of equation tanx+secx=2cosx lying in the inter...

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  18. The value of sin((pi)/(18))+sin((pi)/(9))+sin((2pi)/(9))+sin((5pi)/(18...

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  19. If A lies in the second quadrant and 3tanA+4=0, then the value of 2cot...

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  20. The value of cos^(2)48^(@)-sin^(2)12^(@) is

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