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If sin^ 4 x/2+cos^4 x/3 =1/5 then...

If `sin^ 4 x/2+cos^4 x/3 =1/5` then

A

`tan^(2)x=2/3`

B

`(sin^(8)x)/(8)+(cos^(8)x)/(27)=(1)/(125)`

C

`tan^(2)x=1/3`

D

`(sin^(8)x)/(8)+(cos^(8)x)/(27)=(2)/(125)`

Text Solution

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The correct Answer is:
B
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ARIHANT MATHS-TRIGONOMETRIC FUNCTIONS AND IDENTITIES-Exercise (Questions Asked In Previous 13 Years Exam)
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