Solve the equation on the interval 0 ? ? < 2?.sin2 ? - cos2 ? + cos ? = 0
A. 
B. 
C. 
D. 
Answer: C
Mathematics
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Add or subtract as indicated. Make sure that your answer is reasonable by estimating first.5 + 4.32 + 0.254
A. 9.066 B. 0.934 C. 9.574 D. 0.426
Mathematics
Find the zero of the function f.f(x) = 
x
A. 6 B. -6 C. 0 D. Does not exist
Mathematics
Solve the problem.At the first tri-city meeting, there were 8 people from town A, 7 people from town B, and 5 people from town C. If the council consists of 5 people, find the probability of 2 from town A, 2 from town B, and 1 from town C.
A. .038 B. .090 C. .190 D. .076
Mathematics
Find the indicated sum.
A. 2 B. 62 C. 54 D. -62
Mathematics