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If cos^(2)alpha+cos^(2)beta=2, the value...

If `cos^(2)alpha+cos^(2)beta=2`, the value of `tan^(3)alpha+sin^(5)beta` is.

A

a) 0

B

b) 1

C

c) `-1`

D

d) `(1)/(sqrt(3))`

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A
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ADVANCED MATHS BY ABHINAY MATHS ENGLISH-TRIGONOMETRY -EXERCISES (Multiple Choice Questions)
  1. Find the value of 3sin20^(@)-4sin^(3)20^(@).

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  2. Find the value of 3cos20^(@)-4cos^(3)20^(@).

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  3. If cos^(2)alpha+cos^(2)beta=2, the value of tan^(3)alpha+sin^(5)beta i...

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  4. Find the value of tan^(n)1^(@)tan^(n)2^(@)tan^(n)3^(@)......tan^(n)8...

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  5. Find the value of tan^(n)1^(@)tan^(n)2^(@)tan^(n)3^(@)......tan^(n)8...

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  6. The product cos1^(@)cos2^(@)cos3^(@)cos4^(@)......cos100^(@). Is equal...

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  7. Find the value of cos1^(@).cos2^(@).cos3^(@).cos90^(@)

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  8. Find the value of sin1^(@).sin2^(@).sin3^(@)…sin180^(@).

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  9. Find the value of sin^(2)1^(@)+sin^(2)2^(@)+sin^(2)3^(@)+ ----+sin^(...

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  10. Find the value of cos^(2)1^(@)+cos^(2)2^(@)+cos^(2)3^(@)+ -----+cos^...

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  11. sin^(2)5^(@)+sin^(2)10^(@)+sin^(2)15^(@)+ .....+sin^(2)85^(@)+sin^(2)9...

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  12. Find the value of sin10^(@).sin30^(@).sin50^(@).sin70^(@).

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  13. Find the value of tan4^(@).tan43^(@).tan47^(@).tan86^(@).

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  14. Find the value of cot10^(@).cot20^(@).cot60^(@).cot70^(@).cot80^(@).

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  15. The value of tan10^(@)tan15^(@)tan75^(@)tan80^(@) is

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  16. tan""(pi)/(8)tan""(pi)/(12)tan""(3pi)/(8)tan""(5pi)/(12)-sin^(2)""(pi)...

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  17. Find the value of cot""(pi)/20.cot""(3pi)/20.cot""(5pi)/20.cot""(7pi)/...

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  18. Solve sqrt(2+sqrt(2+sqrt(2+2cos16theta)))

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  19. Find the value of tan70^(@).

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  20. Find the value of tan80^(@)

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