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The equation \({\sin }^{4}x−\left(k+2\right)\text{ }{\sin }^{2}x−\left(k+3\right)=0\) possesses a solution if

Q1

The equation \({\sin }^{4}x−\left(k+2\right)\text{ }{\sin }^{2}x−\left(k+3\right)=0\) possesses a solution if

a

\(k>-3\)

b

\(k<-2\)

c

\(-3\leq k\leq -2\)

d

\(k\) is any positive integer

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