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

If $\sin x+\cos x=a$,then $|\sin x-\cos x|=$________

$\begin{array}{1 1}(A)\;\sqrt {2-a^2}&(B)\;a\\(C)\;\sqrt 2&(D)\;-a\end{array} $

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