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sin6^(@)sin42^(@)sin66^(@)sin78^(@)=...

`sin6^(@)sin42^(@)sin66^(@)sin78^(@)=`

A

`1/2`

B

`1/4`

C

`1/8`

D

`1/16`

Text Solution

Verified by Experts

The correct Answer is:
D
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AAKASH SERIES-MULTIPLE & SUBMULTIPLE ANGLES-EXERCISE-II
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  2. Prove that sqrt3 csc 20 ^(@)- sec 20^(@)=4

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  4. If A=tan6^(@) tan42^(@), B=cot66^(@) cot78^(@) then

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  14. The minimum value of cos^(3) x+ cos^(3) (120^(@) + x) + cos^(3) (120^...

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