Asked by Iman
1. If x is an acute angle and tan x =3/4, evaluate
(a) cosx - sinx (b) cosx + sinx
cosx+sinx cosx - sinx
Answers
Answered by
R_scott
this is a 3-4-5 right triangle (a Pythagorean triple...all whole numbers)
cos(x) = 4/5
sin(x) = 3/5
cos(x) = 4/5
sin(x) = 3/5
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