Question

Identify the exact value of the trigonometric functions sin x and cos x.
If x is an acute angle and tan x = 5,
The value of sin x = .
The value of cos x = .

Answer 1

For this case, we have the following expression:
 so x = 5
 Clearing x we have:
 x = atan (5)
 x = 78.69 degrees
 We have then that the values for the sine and the cosine are:
 sine (x) = sine (78.69) = 0.98
 cosine (x) = cosine (78.69) = 0.19
 Answer:
 The value of sine x = 0.98
 The value of cos x = 0.19