Perform the indicated operation. If possible, simplify.Multiply:
A. cos2 x - sin2 x - 1
B. cos2 x - sin x + 1
C. 2cos2 x + cos x - 1
D. 2cos2 x - cos x - 1
Answer: D
You might also like to view...
Solve the problem.Your bank account has $84 in it when you write checks for $59, $49, and 
You then deposit 
and 
How much is in the account? Are you overdrawn?
A. -$133, yes B. $62, no C. $35, no D. $133, no
Divide.-300 ÷ (-8)
A. 
B. 375
C. - 
D. 
Use a graphing calculator or computer graphing software to solve the problem (correct to one decimal place).Find the absolute maximum value for the function f(x) = x2 + 5x + 5 over the interval [3, ?).
A. 12,368.4 B. 367.3 C. 150.8 D. There is no absolute maximum.
Find an equation for the line tangent to the graph of the given function at the indicated point.f(x) = 
at (-6, - 54)
A. y = 27x + 108 B. y = 108x + 27 C. y = 9x + 108 D. y = 108x + 9