Simplify the expression.cos2 4x - sin2 4x
A. 
sin 16x
B. cos 4x
C. cos 8x
D. 2 sin 4x
Answer: C
Mathematics
You might also like to view...
Convert as indicated. Express the answer in decimal form when needed.11 feet per second to meters per second (Round to the nearest tenth.)
A. 3.4 ft/sec B. 33 ft/sec C. 12.2 ft/sec D. 3.7 ft/sec
Mathematics
Simplify the expression.(2x-2)-4
A. 
B. 2x8
C. 
D. 
Mathematics
Write the complex number in standard form.
?
What will be an ideal response?
Mathematics
Provide an appropriate response.Define the meaning of the "effective interest rate" as it relates to a savings account. Give an example to back up your definitions.
What will be an ideal response?
Mathematics