Verify the identity.sin 
= 
(cos ? + sin ?)
What will be an ideal response?
sin 
= sin 
cos ? + sin ? cos 
= 
(cos ? + sin ?).
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Use the shell method to find the volume of the solid generated by revolving the region bounded by the given curves about the given lines.y = 2x,
y = 0,
x = 2; revolve about the x-axis
A. 
?
B. 
C. 
?
D. 
?
Sketch the logarithmic function.f(x) = -4 ln x
A. 
B. 
C. 
D. 
Solve.-4n = -28
A. -7 B. 24 C. 7 D. -24
Solve the problem using two linear equations in two variables and Cramer's rule.Two different gasohol mixtures are available. One contains 5% alcohol and the other 12% alcohol. How much of each should be mixed to obtain 1500 gal of gasohol containing 10% alcohol? (Round to the nearest whole gallon.)
A. 625 gal 5%, 875 gal 12% B. 75 gal 5%, 180 gal 12% C. 1071 gal 5%, 1071 gal 12% D. 429 gal 5%, 1071 gal 12%