1) What is the value of sin225º ? a) √3/2 b) -1/√2 c) 1/2 d) √3 2) What is the value of cos45º ? a) 1/2 b) 1/√2 c) √3/2 d) 1 3) What is the value of sin45º ? a) 1/2 b) 1 c) 1/√2 d) √3/2 4) What is the value of cos120º ? a) -1/2 b) 1 c) √3/2 d) 1/2 5) What is the value of cos210º ? a) 1/2 b) √3/2 c) -√3/2 d) 1 6) What is the value of cos270º ? a) 1 b) 0 c) 1/2 d) √3/2 7) What is the value of tan210º ? a) 1 b) 1/√3 c) 1/2 d) -1/√3 8) What is the value of tan330º ? a) 1/√3 b) 1/√2 c) 0 d) -1/√3 9) What is the value of sin 135º ? a) -1/√2 b) 1/√2 c) √3/2 d) 0 10) What is the value of sin315º? a) 1/2 b) 0 c) √3/2 d) -1/√2

Determining Standard Trigonometric Values

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