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32sin^(6) 15^@ -48 sin^(4) 15 ^(@) + 18 ...

`32sin^(6) 15^@ -48 sin^(4) 15 ^(@) + 18 sin^2 15^@` =

A

1

B

2

C

3

D

`-1`

Text Solution

Verified by Experts

The correct Answer is:
A
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AAKASH SERIES-MULTIPLE & SUBMULTIPLE -PRACTICE SHEET (EXERCISE - II) (LEVEL - I) (Straight Objective Type Questions)
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  4. If cos alpha+ cos beta= a, sin alpha+ sin beta= b and alpha- beta= 2 t...

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  6. sin "" (2pi)/(7) + sin "" (4pi)/(7) + sin "" (8pi)/(7) =

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  11. If theta(1) and theta2 are two values lying in [0,2pi] for which tan t...

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  12. cot 15^@ + cot 75^@ + cot 135^@ =

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  13. cot7(1^@)/2-cot37(1^@)/2-cot52(1^@)/2+cot82(1^@)/2 =

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  14. If sin x + "cosec"x + tan y + cot y = 4 where x and y in (0,(pi)/2) ta...

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  15. The value of cot(7pi)/16 + 2cot(3pi)/8 + cot(15pi)/16 is:

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  19. If theta=pi/(2^n+1) then cos theta cos 2 theta cos 2^(2) theta...... ...

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  20. If sinx + cos x = sqrt7/2 where x in 1^(st) quadrant , then tan""(x)/2...

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