Find the exact value by using a half-angle identity.cos 

A. -  
B.  
C. -  
D.  

Answer: D

Mathematics

You might also like to view...

Sketch the space curve.r(t) = , 0 ? t ? 2?

What will be an ideal response?

View
Mathematics

Solve the inequality and graph the solution set.| x | ? 10

A. (-?, -10]

B. [-10, 10]

C. (-?, 10]

D. (-?, -10] ? [10, ?)

View
Mathematics

Complete.8.00 T = ___ lb

A. 0.004 B. 0.04 C. 1600 D. 16,000

View
Mathematics

Find the volume of the sphere or the cylinder. Use ? = 3.14 when needed. Round to the nearest thousandth if necessary.A sphere with radius 3.5 in..

A. 100.971 in.3  B. 51.287 in.3  C. 179.503 in.3  D. 1436.027 in.3

View
Mathematics