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\operatorname { os } ( \frac { \pi } { 2 } + x ) \cdot \operatorname { sin } ( \pi - x ) |
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Answer» cos(π/2+x)=sinxas π/2 +x=will be in second quadrant and as it is a multiple of π/2 hence cos will change to sinnow sin(π-x)=sinxas π-x will lie in second quadrant and sin is positive hence answer will be sin^2x |
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