Simplify the given expression. Expansion of any term is not necessary; proper recognition of the form of the expression leads to the proper result.1 - 2 sin2 2x
A. 
sin 16x
B. cos 8x
C. cos 4x
D. 2 sin 4x
Answer: C
Mathematics
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Use counting rules to determine the probability.A committee of 5 members is voting on a proposal. Each member casts a yea or nay vote. On a random voting basis, what is the probability that the final vote count is unanimous?
A. 
B. 
C. 
D. 
Mathematics
Determine whether the given number is a zero of the polynomial function.P(x) = -x4 + 2x2 + 4x + 3; -1
A. No B. Yes
Mathematics
Simplify.
A. 
B. 
C. 
D. 
Mathematics
Solve.12 - 
= 5
A. -24, 10 B. -14, 0 C. 0, 14 D. -10, 24
Mathematics