Write the product as a sum or difference of trigonometric functions.10 sin 49° cos 111°
A. 5[sin 160° + sin(-62°)]
B. 5[cos 160° + cos(-62°)]
C. 10[cos 160° + cos(-62°)]
D. 5[sin 160° - sin(-62°)]
Answer: A
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Find the indicated trigonometric function, given that ? is an angle in standard position with the terminal side passing through the given point.(12, 16); Find sin ?.
A. 
B. 
C. 
D. 
Find the sum.
A. 41.23 B. 241.47 C. 286.3 D. 44.83
Determine whether the graph of the equation is symmetric with respect to the x-axis, the y-axis, and/or the origin.y2 - x - 25 = 0
A. y-axis B. x-axis C. origin D. x-axis, y-axis, origin E. none
Given 
set up a Riemann sum to approximate the area under the graph of f(x) on the given interval. Use the midpoints. Is the following the correct answer?Enter "yes" or "no".
Fill in the blank(s) with the appropriate word(s).