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If the equation sin^4x-(k+2)s in^2x-(k+3...

If the equation `sin^4x-(k+2)s in^2x-(k+3)=0` has a solution then `k` must lie in the interval `(-4,-2)` (b) `[-3,2)` `(-4,-3)` (d) `[-3,-2]`

A

` k gt -3 `

B

`k lt -2 `

C

`-3 le k le -2 `

D

`k ` is any (+ve) value

Text Solution

Verified by Experts

The correct Answer is:
C
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