Find the exact value of the trigonometric expression without the use of a calculator.sin 190° cos 70° - cos 190° sin 70°
A. 
B. - 
C. - 
D. - 
Answer: A
Mathematics
You might also like to view...
Simplify.5 ? (3 + 2)2 - 2 ? (6 - 3)2
A. 271 B. 589 C. 107 D. 1107
Mathematics
Solve the problem.Suppose the demand function of a certain item is given by 
and the supply function is 
Find the producer's surplus. Round to three decimal places.
A. 0.773 B. 1.337 C. 0.228 D. 0.664
Mathematics
Let R, F, L, B, T, U mean rotate 90° clockwise the right, front, left, back, top, and under faces, respectively. Name the move that will return the cube to standard position after making the move BU-1. ?
A. UB B. U-1B C. BU2 D. B2U2 E. UB-1
Mathematics
Use the information given about the angle ?, 0 ? ? ? 2?, to find the exact value of the indicated trigonometric function.sin ? = 
, 0 < ? < 
Find cos(2?).
A. 
B. 
C. - 
D. 
Mathematics