Trigonometric Half Angle Identities Answers
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1
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What is the exact value of sin(157.5°)?
A
Negative StartFraction StartStartRoot 2 + StartRoot 2 EndRoot EndEndRoot Over 2 EndFraction
B
StartFraction StartStartRoot 2 minus StartRoot 2 EndRoot EndEndRoot Over 2 EndFraction
C
Negative StartFraction StartStartRoot 2 minus StartRoot 2 EndRoot EndEndRoot Over 2 EndFraction
D
StartFraction StartStartRoot 2 + StartRoot 2 EndRoot EndEndRoot Over 2 EndFraction
2
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cos x ✔ 1 + cos x1 - cos x
A
cos xB
1 + cos xC
1 - cos x3
cos x 1 + cos x ✔ 1 - cos x
A
cos xB
1 + cos xC
1 - cos xDid you find these answers helpful?
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