Use a sum or difference identity to find the exact value.
A. - 
B. - 
C. -2
D. - 
Answer: B
Mathematics
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Solve the equation.
= 
A. {6} B. {56} C. {-16} D. {-56}
Mathematics
Find the exact value of the expression. Do not use a calculator.1 + sin2 45° + sin2 45°
A. -1 B. 0 C. 1 D. 2
Mathematics
Evaluate the given binomial coefficient.
A. 42 B. 3 C. 60,480 D. 84
Mathematics
Solve.In September, Karen's credit card bill was $178.90. In October, her credit card bill was $217.98. What is the difference in cost between her October bill and her September bill?
A. $29.08 B. $40.08 C. $39.18 D. $39.08
Mathematics