Verify the identity.tan 2 x (1 + cos 2x) = 1 - cos 2x
What will be an ideal response?
tan 2 x (1 + cos 2x) = 
(1 + cos 2x) = 1 - cos 2x
Mathematics
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Multiply.(-3y - 4)(9y2 - y + 9)
A. 12y2 - 23y - 36 B. -27y3 - 23y - 36 C. -27y3 - 33y2 - 23y - 36 D. -27y3 - 39y2 - 23y - 36
Mathematics
Solve the problem.Sketch a continuous curve y = f(x) with the following properties: f(2) = 3; f"(x) > 0 for x > 4; and f"(x) < 0 for x < 4 .
What will be an ideal response?
Mathematics
Use the graph to find a ? > 0 such that for all x, 0 < 
< ? ? 
< ?.
? 
A. 0.2 B. 4.6 C. 0.04 D. 0.3
Mathematics
Solve the problem.If 
is a convergent series of nonnegative terms, what can be said about 
?
A. Always converges B. May converge or diverge C. Always diverges
Mathematics