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If cos theta + sec theta = 2 then cos^(...

If `cos theta + sec theta = 2 ` then `cos^(n) theta + sec^(n) theta = `

A

1

B

0

C

2

D

`2^(n)`

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AAKASH SERIES-TRIGONOMERTIC RATIOS-PRACTICE EXERCISE
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  2. If Cos theta(1) + Cos theta(2) + Cos theta(3) = 3 then Sin theta(1) +...

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  3. If cos theta + sec theta = 2 then cos^(n) theta + sec^(n) theta =

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  4. If cot theta + tan theta = 2 then cot^(n) theta + tan^(n) theta =

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  6. If tan ( alpha + beta) = sqrt(3), tan ( alpha - beta ) =1 then tan 6 ...

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  7. If n is even then sin theta + sin ( pi + theta ) + sin (2 pi + theta) ...

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  12. cos. (3pi)/(19) + cos . (7pi)/(19) + cos. (12pi)/(19) + cos. (16pi)/(1...

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  13. tan. (pi)/(10) + tan. (3pi)/(10) + tan. (7pi)/(10) + tan. (9pi)/(10) ...

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  14. If alpha , beta are supplementary angles , then cos^(2)alpha + sin^(...

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  15. If ABCD is a quadrilateral then Sec^(2) ((A+B)/(4))- Cot^(2) ((C+D)/(...

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  16. If ABCD is a cyclic quadrilateral then co (180^(@) +A) + cos (180^(@)...

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  19. cos^(2)5^(@)+cos^(2)10^(@)+cos^(2)15^(@)+.....+cos^(2) 90^(@)=

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