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Questions  >>  Olympiad-Math  >>  Class 10
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Q)

The value of $\sin (70^{\circ}+ \theta) - \cos (20^{\circ}- \theta )$=________

$\begin{array}{1 1}(A) \; 0 \\(B)\; 1 \\(C)\;-1 \\(D)\;\pm 1 \end{array}$

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