Use the information given about the angle ?, 0 ? ? ? 2?, to find the exact value of the indicated trigonometric function.cos ? = - 
, csc ? < 0Find cos (2?).
A. 
B. 
C. - 
D. 
Answer: D
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Prorate the given expenses to find the monthly cost. Sarah takes courses on a quarter system. Three times a year, she takes 15 credits at a tuition rate of 
per credit; her fees are 
per quarter and her room in a shared house costs 
per week. Round your answer to the nearest dollar.
A. $1828 B. $1043 C. $1328 D. $2563
Solve the problem. Refer to the table if necessary.
Carmen and James are married and filed jointly. Their combined wages were $88,560. They earned a net of $2146 from a rental property they own, and they received $1692 in interest. They claimed four exemptions for themselves and two children. They contributed $4113 to their tax-deferred retirement plans, and their itemized deductions total $10,460. Find their adjusted gross income.
A. $77,825 B. $84,901 C. $106,971 D. $88,285
Complete the identity.
sec ? csc ? = ?
A. 
B. 
C. csc (2?)
D. sec (2?)
Solve the problem.Find cos 
, given that cos ? = 
and ? terminates in 0 < ? < ?/2.
A. 
B. 
C. 
D. 