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The general value theta obtained from th...

The general value `theta` obtained from the equation `cos3theta=sinalpha` is

A

`2theta=(pi)/(2)-alpha`

B

`theta=2npipm((pi)/(2)-alpha)`

C

`theta=(npi+(-1)^(n)alpha)/(2)`

D

`theta=2npi/3pm((pi)/(6)-(alpha)/(3))`

Text Solution

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The correct Answer is:
D
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TARGET PUBLICATION-TRIGONOMETRIC FUNCTIONS -Competitive Thinking
  1. If sin((pi)/(4)costheta)=cos((pi)/(4)tantheta), then theta is equal to

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  2. If tan2thetatantheta=1, then the general value of theta is

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  3. The general value theta obtained from the equation cos3theta=sinalpha ...

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  4. If sin 6 theta + sin 4 theta + sin 2 theta = 0 Then the general valu...

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  5. If sin5x+sin3x+sinx=0 ,then the value of x other than 0 lying between ...

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  6. sinx+sin3x+sin5x=0

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  7. The number of solutions of the equation sinx-sin2x+sin3x=2cos^(2)x-cos...

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  8. The value of x in (0,(pi)/(2)) satisfying the equation sin x cos x =(1...

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  9. If sintheta= costheta=1, then find the general value of theta.

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  10. sqrt(2)sectheta+tantheta=1

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  11. sqrt(3)costheta+sintheta=2

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  12. sin6theta+sin4theta+sin2theta=0,"then "theta=

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  13. sintheta+sin7theta=sin4theta

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  14. Solve (tan3x-tan2x)/(1+tan3xtan2x ')=1

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  15. (tan3theta-1)/(tan3theta+1)=sqrt(3), then the general value of theta i...

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  16. If sin2theta=cos3thetaa n dtheta is an acute angle, then sintheta equa...

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  17. Find the gereral of the equation sinx-3sin2x+sin3x=cosx-3cos2x+cos3x.

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  18. If cot (alpha + beta) = 0, then sin (alpha + 2 beta) is equal to

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  19. tantheta+tan2theta=tanthetatan2theta=1

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  20. sec4theta - sec2theta=2

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