Simplify the expression.sin(2x) - 
A. 
B. 
C. 
D. 5 sin(2x)
Answer: C
Mathematics
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Use the limit definition of the partial derivative to compute the indicated partial derivative of the function at the specified point.Find 
at the point (7, -9, 1): f(x, y, z) = 4x2y + 3y2 + 4z
What will be an ideal response?
Mathematics
A particle moves with position function r(t) = (21t- 7t³ - 6)i+21t²j.
Find the tangential component of the acceleration vector. Select the correct answer.
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Mathematics
Multiply and express the product in lowest terms.
? 
A. 
B. 
C. 
D. 
Mathematics
Find the average rate of change for the function between the given values.f(x) = -3x2 - x; from 5 to 6
A. - 
B. -34
C. 
D. -2
Mathematics