Perform the indicated operation. If possible, simplify.Multiply:
A. cos2 x
B. - cos2 x
C. sin2 x - 2sin x - 1
D. sin2 x - sin x - 1
Answer: B
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Find the least common multiple of the numbers.20 and 30
A. 300 B. 200 C. 600 D. 60
Use a graphing calculator to make a conjecture as to whether each equation is an identity.(sin x + cos x)2 = 1
A. Identity B. Not an identity
The real solutions of the given equation are rational. List all possible rational roots using the Rational Zeros Theorem, and then graph the polynomial in the given viewing rectangle to determine which values are actually solutions. (All solutions can be seen in the given viewing rectangle.)
?
by 
What will be an ideal response?
List the first n terms of the geometric sequence satisfying the given conditions.a2 = 6, a3 = 12, n = 4
A. 6, 12, 24, 48 B. 3, 6, 12, 48 C. 1, 6, 12, 24 D. 3, 6, 12, 24