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In a right triangle, the acute angles have the relationship sin (2x+14) = cos (46). What is the value of x?

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  1. 2 July, 20:33
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    The value of x is 15°

    Step-by-step explanation:

    we know that

    If in a right triangle (A and B are the acute angles)

    sin (A) = cos (B)

    then

    angle A and angle B are complementary angles

    so

    A+B=90°

    therefore

    In this problem

    sin (2x+14) °=cos (46°)

    (2x+14) °+46°=90°

    Solve for x

    2x+60°=90°

    2x=30°

    x=15°
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