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    Please could somebody explain 8c. Thanks!
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    (Original post by Zooloo)
    Please could somebody explain 8c. Thanks!
    0.84 = 21/25cos(theta-73.74)

    Rearrange for cos(theta-73.74) --> cos(theta-73.74) = 1 and solve for theta --> theta = 73.74

    Then use sintheta = Opposite/Hypotenuse using the picture in the question and sin73.74=7/H

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    (Original post by itsConnor_)
    0.84 = 21/25cos(theta-73.74)

    Rearrange for cos(theta-73.74) --> cos(theta-73.74) = 1 and solve for theta --> theta = 73.74

    Then use sintheta = Opposite/Hypotenuse using the picture in the question and sin73.74=7/H

    Posted from TSR Mobile
    Thank you so much
 
 
 
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