Differentiate. 
What will be an ideal response?
?2cos x sin x
Mathematics
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Solve the problem.Find the equation that satisfies the following conditions:
= 5 + 
, y(1) = 15
A. y = ln |x| + 15 B. y = x + ln |x| + 14 C. y = 5x + ln |x| + 10 D. y = 5x + ln |x| + 9
Mathematics
Sketch a typical level surface for the function.f(x, y, z) = cos (x2 + y2 + z2)
A. 
B. 
C. 
D. 
Mathematics
Solve the given applied problem.A rectangle has area A m2 with A = w(9 - w), where w is the width of the rectangle and the perimeter is 18m. Sketch the graph of A as a function of w.
A. 
B. 
C. 
D. 
Mathematics
Write the sum without sigma notation and evaluate it.
A. 4 cos ? + 64 cos 3? = -68 B. 4 cos ? + 16 cos ? + 64 cos ? = -84 C. 4 cos ? + 16 cos 2? + 64 cos 3? = -52 D. 4 cos ? + 16 cos 2? + 64 cos 3? = 52
Mathematics