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Questions  >>  CBSE XI  >>  Math  >>  Trigonometric Functions
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True-or-False :One value of $\theta$ which satisfies the equation $\sin ^4\theta-2\sin ^2\theta-1$ lies between 0 and $2\pi$

$\begin{array}{1 1}(A)\;\text{True}\\(B)\;\text{False}\end{array} $

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