Use the Half-angle Formulas to find the exact value of the trigonometric function. cos 165°
A. - 
B. 
C. 
D. - 
Answer: A
You might also like to view...
Decide whether the statement makes sense. Explain your reasoning.Jose's car gets about 20 miles to the gallon. He is thinking of buying a new fuel-efficient car which gets 
miles to the gallon and which costs $25,000. He reasons in this way: " I drive about 300 miles per week. Gas costs about $3.50 per gallon. That means I'll save $1365 per year on gas. That means that if gas remains at $3.50 per gallon it will be about 18 years before the car has paid for itself. I don't think I can justify buying the new car. "
What will be an ideal response?
Provide an appropriate response.A(n) ________ deduction is the addition of all individual deductions to which you are entitled.
A. itemized B. complete C. standard D. None of the above
Provide an appropriate response.Give the bounds of summation and the index of summation for 
What will be an ideal response?
Use a calculator to solve the equation on the interval 0 ? ? < 2?. Round the answer to two decimal places.sin ? = 0.29
A. 0.29, 5.99 B. 0.39, 3.53 C. 0.29, 2.85 D. 0.39, 1.96