trig/precalc

a plane flies 810 miles form Franklin to Centerville with a bearing of 75 degrees (clockwise from north). then it flies 648 miles from centerville to rosemont with a bearing of 32 degrees. find the straight-line distance and bearing from rosemont to franklin.

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  1. Compute the north and east displacements of both legs of the journey.

    Add the two north displacements. Call that sum Y

    Y = 810 cos75 + 648 cos32 = __

    Add the two east displacements. Call that sum X.

    X = 810 sin75 + 648 sin32 = ___

    Straight-line distance = sqrt[X^2 + Y^2]

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  2. falalalala

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