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this is 2 questions
If xsin x = 3.5, find (-x) sin(-x). Find the exact value of the expression in terms of x with the help of a reference angle.
if cos x = -and sin x > 0, find the exact value of sin(2x) VO and simplify
6. If cos(x) = -, and xeQIV , find the exact value of each of the following. Show all work. a.sin(2x) X b.cos (६)
Find the exact value of sinſ and cos given that cos x = 3,27 ,270° <x< 360°. [8] 4-cos e 18. cos20-5 cos 0+4 since 1+cos e
2. Find the exact value of the expression in terms of x with the help of a reference triangle. sin(tan-(4x - 5))
16.Find the exact value of the expression in radians and
degrees.
Find the exact value of the expression in radians
=
Type an exact answer, using
as needed. Use integers or fractions for any numbers in the
expression. Type your answer in radians.
Find the exact value of the expression in degrees.
Type your answer in degrees
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Find the exact value ① If cos(x) = - 10 / when I LX <T, then sen ( 3 ) = ? 12 If sen(x) = 2/3 when o< X < 1 2 2 I then sen (2x) = ?
Given: 4 POINTS coso - , 0<0<x Find the exact value of the following trigonometric functions sine, tan and csce esco - 030<x В. Find the exact value of the following trigonometric functions sin, tan and seco,
Find the exact value of the following:
2. (12 pts.) Find the exact value TI a. COS -COS 24 c. sin(52.5°) sin(7.5°) b. tan 61322
x (x)
51 3. Use a half-angle formula to find the exact value of tan 12