Rewrite the expression as the sine, cosine, or tangent of a double angle. Then find the exact value of the trigonometric expression without the use of a calculator.
A. 
B. - 
C. -
D. 
Answer: A
Mathematics
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Evaluate the given integral by using three terms of the appropriate series, rounding the result to four decimal places.
A. 0.0215 B. 0.0416 C. 0.0440 D. 0.1466
Mathematics
Find the volume. Use ? ? 3.14. Round to the nearest tenth when necessary.a cylinder with radius 8 in. and height 8 in.
A. 201 in.3 B. 401.9 in.3 C. 1607.7 in.3 D. 6430.7 in.3
Mathematics
Simplify the expression.((b-1)-1)-1
A. 
B. b-3
C. b
D. 
Mathematics
Solve the equation.
= 
A. 
B. 
C. 
D. 
Mathematics