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17 June, 17:00

A rain gutter is to be constructed of aluminum sheets 12 inches wide after marking off legs 4 inches from each edge this blank is bent up at in angle theta the area a of the opening may be expressed as the function a theta equals 16 sin theta times cos theta + 1. If theta = 90 degrees, what is the area of the opening

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  1. 17 June, 20:43
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    A (90∘) = 16sin 90∘ (cos 90∘ + 1) = 16*1 * (0+1) = 16 i think
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