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If pn = cos^n theta + sin^n theta then p...

If `p_n = cos^n theta + sin^n theta` then `p_n - p_(n-2) = k p_(n-4)` where k

A

`k =1`

B

`k =- sin ^(2) theta cos ^(2) theta`

C

`k = sin ^(2) theta`

D

`k = cos ^(2) theta `

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The correct Answer is:
B
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DISHA PUBLICATION-TRIGONOMETRIC FUNCTIONS -EXERCISE-1
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  8. The number of points of intersection of the curves 2y =1 " and " y = "...

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  9. If pn = cos^n theta + sin^n theta then pn - p(n-2) = k p(n-4) where k

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  10. In the interval [-pi/2,pi/2] the equation log(sin theta)(cos 2 theta)=...

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  17. The angular elevation of a tower OP at a point A due south of it is 60...

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