Use sum-to-product formulas to rewrite the expression as a product.cos 19° - cos 49°
A. -2 cos 34° cos 15°
B. 2 sin 34° cos 15°
C. -2 sin 34° sin 15°
D. 2 sin 34° sin 15°
Answer: D
Mathematics
You might also like to view...
Round the number to the place value indicated.829
A. 700 B. 800 C. 810 D. 900
Mathematics
Solve and check your answer.-24 + 14 = 3x + 2 - 2x
A. -12 B. 40 C. -40 D. 12
Mathematics
Graph the function.f(x) = (x - 3)2 
A. 
B. 
C. 
D. 
Mathematics
The owner of the Rancho Los Feliz has 3,200 yd of fencing material with which to enclose a rectangular piece of grazing land along the straight portion of a river.
?
If fencing is not required along the river, what are the dimensions of the largest area that he can enclose?
?
?
What is this area?
?
What will be an ideal response?
Mathematics