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10 July, 23:35

Find the exact value of sin (7 π 4) using reference angles

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  1. 11 July, 02:04
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    -1/root2

    Step-by-step explanation:

    7pi/4 radians is the same as - pi/4 radians

    sin (-pi/4) is - sin (pi/4) = - 1/root2
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