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For positive acute angles A and B, it is known that tan A=20/21 and cos B=3/5. Find the value of sin (A+B) in simplest form.
For positive acute angles A and B, it is known that tan A=20/21 and cos B=3/5. Find the value
of sin (A+B) in simplest form.
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Sampling
Authors: Steven K Thompson
3rd Edition
111816296X, 9781118162965
