Express the product as a sum containing only sines or cosines.cos 
cos 
A. 
cos2 (5?)
B. 
[cos (2?) + cos (3?)]
C. 
[cos (6?) - sin (4?)]
D. 
[cos (3?) - sin (2?)]
Answer: B
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All of the following are conditions for an ordinary annuity due except
A. ?periodic cash flows must be equal in amount. B. ?the time periods between the cash flows are the same length. C. ?the future value is equal to the present value. D. ?interest is compounded at the end of each time period.
Decide whether the statement makes sense. Explain your reasoning.Gabe said "For years there has been no money in the Social Security trust fund, just a bunch of IOUs". Kim said "That's impossible, if that were true, how come the government has been able to pay out Social Security benefits all these years?" Who is making more sense?
What will be an ideal response?
Solve the problem. Refer to the table if necessary.
Caitlin is single and earned wages of $34,108. She received $300 in interest from a savings account. She contributed $511 to a tax-deferred retirement plan. She had $446 in itemized deductions from charitable contributions. Calculate her gross income.
A. $33,897 B. $33,451 C. $34,408 D. $34,919
Use the Half-angle Formulas to find the exact value of the trigonometric function. tan 165°
A. -2 - 
B. 2 - 
C. 2 + 
D. -2 + 