# FIND EXACT VALUE OF TRIG FUNCTIONS WITHOUT CALCULATOR WORKSHEET

Problem 1 :

cos -210°

Solution

Problem 2 :

Solution

Problem 3 :

Solution

Problem 4 :

Solution

Problem 5 :

csc -420°

Solution

Problem 6 :

cos 1050°

Problem 7 :

cot -840°

Solution

Problem 8 :

Solution

Problem 9 :

sin -450°

Solution

Problem 10 :

sin 240°

Solution

Problem 11 :

csc π

Solution

Problem 12 :

Solution

Problem 13 :

sec -390°

Solution

Problem 14 :

cos -930°

Solution

 1)  -√3/22)  -1/23)  04)  undefined5)  -2√3/36)  √3/27) √3/3 8)  -√29)  -110)  -√3/211)  undefined12)  213)  2√3/314)  -√3/2

Problem 1 :

Find the exact value of cos (7π/4)

Solution

Problem 2 :

Find the exact value of sin (-30°)

Solution

Problem 3 :

Find the exact value of cos (600°)

Solution

Problem 4 :

Find the exact value of sin (9π/2)

Solution

Problem 5 :

Find the exact value of tan (585°)

Solution

Problem 6 :

Find the exact value of cos (23π/6)

Solution

Problem 7 :

Find the exact value of cos (-11π/4)

Solution

Problem 8 :

Find the exact value of sin (-13π/4)

Solution

1)  cos (7π/4) = 1/√2

2)  -sin 30° = -1/2

3)  cos 600° = -1/2

4)  sin 810° = 1

5)  tan 585° = 1

6) cos (23π/6) =  √3/2

7)  cos (-11π/4) =  -1/√2 (or) -√2/2

8)  sin (-13π/4) = 1/√2 (or) √2/2

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