Factor.x2 + 49
A. (x + 7)2
B. (x - 7)(x + 7)
C. (x - 7)2
D. Not possible
Answer: D
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Verify that each equation is an identity.csc s - sin s = cos s cot s
What will be an ideal response?
Write the expression in terms of sine and cosine, and simplify so that no quotients appear in the final expression.
A. sec2 x B. csc2 x C. 1 D. cot2 x
List all the elements of B that belong to the given set.B = {15, 
, -6, 0, 
}Real numbers
A. 
B. {15, -6, 0}
C. 
D. 
Identify intervals on which the function is increasing, decreasing, or constant.f(x) = 0.5(x + 4)2 - 8
A. Increasing: (-4, ?); decreasing: (-?, -4) B. Increasing: (-?, -0.5); decreasing: (0.5, ?); constant: (-0.5, 0.5) C. Increasing: (4, ?); decreasing: (-?, -4); constant: (-4, 4) D. Increasing: (-?, -4); decreasing: (-4, ?)