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The set of values of lambda in R such th...

The set of values of `lambda in R` such that `sin^(2) theta + cos theta = lambda cos^(2) theta` holds for some `theta`, is

A

`(-oo,1]`

B

`(-oo,-1]`

C

`cancleO`

D

`[-1,oo)`

Text Solution

Verified by Experts

The correct Answer is:
D
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