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The equation k sin x + cos 2 x = 2k - 7 ...

The equation `k sin x + cos 2 x = 2k - 7` has a solution, if a)`k gt 6` b)`2 le k le 6` c)`k lt 2` d)`-6 le k le -2`

A

`k gt 6`

B

`2 le k le 6`

C

`k lt 2`

D

`-6 le k le -2`

Text Solution

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The correct Answer is:
B
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