Rationalize the denominator. Write the quotient in lowest terms.
A. 
B. 
C. 
D. 
Answer: D
Mathematics
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Find the value of the indicated sum.
A. 4 cos ? + 64 cos 3? = -68 B. 4 cos ? + 16 cos 2? + 64 cos 3? = -52 C. 4 cos ? + 16 cos ? + 64 cos ? = -84 D. 4 cos ? + 16 cos 2? + 64 cos 3? = 52
Mathematics
An initial investment of $557.33 grows at a rate of 5 percent per year. What is the value of the investment after 4 years? Round your answer to the nearest cent. ?
A. $585.20 B. $668.80 C. $677.44 D. None of the above
Mathematics
Simplify.
A. -3x11 B. 3x11 C. 3x7 D. -3x7
Mathematics
Find the radius of convergence of the series. Select the correct answer.
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Mathematics