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The equation kcosx - 3sinx + k +1 is sol...

The equation `kcosx - 3sinx + k +1` is solvable only if `k` belongs to the interval :

A

`[4, + infty)`

B

`[-4,4)`

C

`(-infty,4]`

D

None of these.

Text Solution

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The correct Answer is:
C
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MODERN PUBLICATION-TRIGONOMETRIC RATIOS, IDENTITIES AND EQUATIONS-MULTIPLE CHOICE QUESTION(LEVEL-II)
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