Use the sum-to-product formulas to find the exact value of the given expression.
?
?
?
A. ?
B. ?1
C. ?
D. -1
E. 0
Answer: E
You might also like to view...
Use a finite approximation to estimate the area under the graph of the given function on the stated interval as instructed.f(x) = x2 between x = 0 and x = 2 using the midpoint sum with two rectangles of equal width.
A. 5 B. 1 C. 2.5 D. 4.5
Perform the conversion. Round to the nearest hundredth when necessary.443 mi to km
A. 419.08 km B. 469.58 km C. 713.23 km D. 275.1 km
An object attached to a coiled spring is pulled down a distance a from its rest position and then released. Assuming that the motion is simple harmonic with period T, write an equation that relates the displacement d of the object from its rest position after t seconds. Also assume that the positive direction of the motion is up.a = 16;
T = 7 seconds
A. d = -7 cos 
B. d = -16 cos 
C. d = -16 sin 
D. d = -16 cos 
Find an equation of variation if the following conditions exist.Suppose p varies directly as q and p = 1 when q = 
.
A. p = 2q
B. p = 
q
C. p = 4q
D. p = 3q