Use the power-reducing identities to rewrite the expression that does not contain trigonometric functions of power greater than 1.sin 
cos 
(1 - 2 sin2 x)
A. 
B. 
C. 
D. 
Answer: D
Mathematics
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Evaluate the given expression.cos-1 
A. 
B. - 
C. 
D. 
Mathematics
Write an equation to describe the variation. Use k for the constant of proportionality.a varies inversely as w4
A. w = 
B. a = 
C. w = 
D. a = 
Mathematics
Find the exact value of the expression in degrees without using a calculator or table.cot-1 
A. 90° B. 45° C. 180° D. 135°
Mathematics
Use synthetic division to find the quotient and the remainder.x5 + x2 - 2 is divided by x + 3
A. x4 - 3x3 + 9x2 - 26x + 78; remainder -236 B. x4 - 3x3 + 10x2 - 30x + 90; remainder -272 C. x4 - 2; remainder 4 D. x4 - 2x2; remainder 4
Mathematics