Use identities to fill in the blank with the appropriate trigonometric function name.sec 80° = 
A. csc
B. sec
C. cos
D. sin
Answer: D
Mathematics
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Answer the given question.Where are all points whose coordinates have the same sign?
A. In first or second quadrant B. In third or fourth quadrant C. In second or fourth quadrant D. In first or third quadrant
Mathematics
Write the integral that gives the surface area generated when the curve is revolved about the x-axis. Do not simplify.y = x7 on [0, 3]
A. 2?
dx
B. 
dx
C. 2?
dx
D. 2?
dx
Mathematics
Perform the division.(x2 - 64) ÷ (x - 8)
A. x + 64 B. x2 - 8 C. x + 8 D. x - 64
Mathematics
Set up an integral for the area of the surface generated by revolving the given curve about the indicated axis.y = tanx, 0 ? x ? ?/4; x-axis
A. 
dx
B. 2?
dx
C. 2?
dx
D. 
dx
Mathematics