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Questions  >>  CBSE XI  >>  Math  >>  Trigonometric Functions
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Q)

If $\sin \theta+\cos \theta=1$,then the value of $\sin 2\theta$ is equal to

$\begin{array}{1 1}(A)\;1&(B)\;\large\frac{1}{2}\\(C)\;0&(D)\;-1\end{array} $

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