Verify the identity.(1 + tan2 x)(1 - sin2x) = 1
What will be an ideal response?
(1 + tan2x)(1 - sin2x) = sec2x ? cos2x = 
? cos2x = 1
Mathematics
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Perform the indicated subtraction.-7 - (-7)
A. 1 B. 14 C. -14 D. 0
Mathematics
Write the system of equations that corresponds to the augmented matrix.
A. 
B. 
C. 
D. 
Mathematics
Solve the problem.The polynomial function 
represents the yearly income (or loss) from a real estate investment, where t is time in years. After what year does income begin to decline?
A. 12.00 B. 9 C. 8 D. 18
Mathematics
Find the limit algebraically.
(3x2 - 19)2
A. -352 B. 100 C. 256 D. 144
Mathematics