Use the properties of the trigonometric functions to find the exact value of the expression. Do not use a calculator.tan 80° - 
A. 1
B. 0
C. 80
D. undefined
Answer: B
Mathematics
You might also like to view...
Solve the indicated equation analytically.The weekly sales in thousands of items of a product has a seasonal sales record approximated by 
where t is the time in weeks with t = 1 referring to the first week in the year. During which week(s) will the sales equal 99,650 items?
A. week 4, week 20, and week 52 B. week 21 and week 30 C. week 30 and week 47 D. week 4 and week 47
Mathematics
Evaluate the improper integral.
A. 36 B. 16 C. 144 D. 216
Mathematics
Find the derivative of y with respect to the independent variable.y = t8 - e
A. 
B. t8 - e
C. (8 - e)t7 - e
D. (7 - e)t8 - e
Mathematics
Simplify the expression by combining any like terms.2x2 - 4x - 7 + 6x - 6 + 4x2
A. 6x2 + 2x - 13 B. -5x3 C. 6x4 + 2x2 - 13 D. -3x2 + 8x - 10
Mathematics