A light hangs 15ft above a horizontal path and a man 6ft tall is walking away at 5 ft/sec. i) How fast is the man's shadow lengthening? ii) How fast is the tip of his shadow moving?

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A: We can solve this as follows:

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A: Follow the procedure given below.

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A: Given fx=2sinx+sin2x To find points:

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A: Given ∫dxxx2+4

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