CHALLENGE Let A be any acute angle of a right triangle. Show that (a) tan A 5 } sin A
Chapter 7, Problem 7.6.32(choose chapter or problem)
CHALLENGE Let A be any acute angle of a right triangle. Show that (a) tan A 5 } sin A cos A and (b) (sin A) 2 1 (cos A) 2 5 1.
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