Verify the identity.
+ 1 = 2 sin2 x
What will be an ideal response?
+ 1 = 
+ 1 = 
- 
+ 1 = sin2x - 
+ 1 
= 2 sin2x
Mathematics
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Find the volume of the solid generated by revolving the region bounded by the given lines and curves about the 
. y = 2cos (?x), y = 2, x = -0.5, x = 0.5
A. 8?
B. 4?
C. 
?
D. 2?
Mathematics
Solve each proportion for the given variable.
= 
A. 2
B. 20
C. 
D. 12
Mathematics
Solve.Normal body temperature is 98.6°F. Ellen's temperature is 
How many degrees above normal body temperature is this?
A. 3.7° B. 3.8° C. 2.8° D. 2.7°
Mathematics
Factor the trinomial completely. If the polynomial cannot be factored, write "prime."x2 + 3xy - 18y2
A. (x + 6y)(x - 3y) B. (x - 6y)(x + y) C. (x - y)(x + 3y) D. (x - 6y)(x + 3y)
Mathematics