Please and thank you even number only 848890929496 Find the

Find the exact acute angle for the given function value. V2 83, sin =- 84. cot = 85, cos =- 86, sin = 87, tan = 1 88, cos = 2V3 90. tan = V3 92. sec = V2 91, cot = V3 Use the cofunction and reciprocal identities to complete each of the following 93, cos 20°- 70° 20° 94, sin 64°- 26\" 64 64° 95. tan 52 cot 52° 96, sec 13° = csc 13°

Solution

84) cot = 3/3 = 1/3

      tan = 1/cot = 3 =======> = pi/3

88) cos = 3/2 ==========> = pi/6

90) tan = 3 =======> = pi/3

92) sec = 2

       cos = 1/sec = 1/2 =========> = arccos(1/2) = pi/4

94) sin64 = cos26 = 1/csc64

96) sec13 = csc77 = 1/cos13