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b. The angle of elevation of the sun is decresing at a rate of 0.25 rad/h. How fast is the shadow cast by a
b. The angle of elevation of the sun is decresing at a rate of 0.25 rad/h. How fast is the shadow cast by a 400-ft-tall building increasing when the angle of elevation of the sun is . (hint: use a trig formula since we are working with an angle) 6
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Advanced Engineering Mathematics
Authors: Erwin Kreyszig
2nd Edition
471889415, 978-0471889410
