Verify the identity.(1 + tan2 x)(1 - sin2x) = 1
What will be an ideal response?
(1 + tan2x)(1 - sin2x) = sec2x ? cos2x = 
? cos2x = 1
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Solve.An ice cream cone with a 8-centimeter diameter and 12-centimeter depth is filled exactly level with the top of the cone. Approximate how much ice cream (in cubic centimeters) is in the cone. Use 
for ?.
A. 804
cu cm
B. 2413
cu cm
C. 201
cu cm
D. 603
cu cm
Find the real zeros of the function. List the x-intercepts of the graph of the function.h(x) = 3x4 - 190x2 - 128
A. x = 8
B. x = -8, x = 8
C. x = - 
, x = 
, x = -8, x = 8
D. no real solution
Express the statement as an equation involving the indicated variables.The area A of a rectangle is the product of its length l and its width w.
A. A = lw
B. A = 2(l + w)
C. A = l + w
D. A = 
Solve the problem. Express the answer as a mixed number when appropriate.Find the perimeter of the rectangle with length L = 
centimeters, and width 
centimeters.
A. 
cm
B. 
cm
C. 
cm
D. 
cm