1.

If (sin^(4)theta)/(a)+(cos^(4)theta)/(b)=(1)/(a_+b) then(sin^(8)theta)/(a^(3))+(cos^(8)theta)/(b^(3))=

Answer»

`(1)/((a+b)^(3))`
`(1)/((a+b)^(2))`
a+b
`(1)/(a+b)`

ANSWER :A


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