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The equation K cdot sin theta + cos 2 th...

The equation `K cdot sin theta + cos 2 theta = 2K - 7` possesses a real solution if

A

`2 le K le 6`

B

`K gt 2`

C

`K gt 6`

D

`K lt 2`

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The correct Answer is:
A
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MARVEL PUBLICATION-TRIGONOMETRIC FUNCTIONS-MULTIPLE CHOICE QUESTIONS - PART - A : BUILDING-UP THE BASE
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