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The equation cos^(4)x-(a+2)cos^(2)x-(a+3...

The equation `cos^(4)x-(a+2)cos^(2)x-(a+3)=0` possesses a solution if

A

`a gt - 3`

B

` a lt - 2`

C

` - 3 le a le - 2`

D

` a gt 0`

Text Solution

Verified by Experts

The correct Answer is:
C
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