Use reduction formulas to evaluate the integral.
A. 
sin 4x - 
sin3 4x + C
B. 
sin 4x + 
sin3 4x + C
C. 
sin 4x - 
cos3 4x + C
D. 5 sin 4x - 
sin3 4x + C
Answer: A
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From atop a building 30 feet high, a rock is tossed upward with an initial velocity of 18 feet per second. The distance D, in feet, above the ground after t seconds is given by
.
A: Make a graph of distance up from the ground versus time.B: Make a graph of the velocity of the rock from the time it is tossed until it hits the ground. Be sure to label your graph appropriately.
What will be an ideal response?
Evaluate the expression.-7 - (-3)
A. -10 B. -4 C. 4 D. 10
Write the system of linear equations represented by the augmented matrix. Use x, y, and z as the variables.
A. 
B. 
C. 
D. 
Find the exact value under the given conditions.cos ? = - 
, 
< ? < ?; sin ? = - 
, ? < ? < 
Find cos (? + ?).
A. 
B. 
C. 
D. 