Use a sum or difference identity to find the exact value.sin 255°

A.
B.
C.
D.

Answer: A

Mathematics

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Evaluate the integral by using multiple substitutions. dx

A. (8 + sin2 (x - 10))3/2 + C
B. (8 + cos2 (x - 10))3/2 + C
C. (8 + sin2 x)3/2 + C
D.  + C

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Mathematics

Evaluate the expression for the values given.abc + b2; a = 5, b = -3, c = 7

A. -114 B. -96 C. -108 D. 114

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Mathematics

Verify the identity.2 sin(x + y) cos(x - y) = sin 2x + sin 2y

What will be an ideal response?

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Mathematics

The letters x and y represent rectangular coordinates. Write the equation using polar coordinates (r, ?).y2 = 16x

A. sin2 ? = 16r2 cos ? B. r sin2 ? = 16 cos ? C. r2 sin2 ? = 16 cos ? D. sin2 ? = 16r cos ?

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Mathematics