Mathematics, 04.02.2020 19:51 kiaunarayne808
Given the general identity tan x =sin x/cos x , which equation relating the acute angles, a and c, of a right ∆abc is true?
a. tan a = sin a/sin c
b. cos a = tan (90-a)/sin (90-c)
c. sin c = cos a/tan c
d. cos a = tan c
e. sin c = cos (90-c)/tan a
Answers: 3
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