Use the sum/difference identities to simplify the expression. Do not use a calculator.cos 
cos 
- sin 
sin 
A. 
B. 
C. 1
D. 
Answer: A
Mathematics
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Solve the equation.-6x = -36
A. -30 B. 6 C. 30 D. 2
Mathematics
LetU = {q, r, s, t, u, v, w, x, y, z} A = {q, s, u, w, y} B = {q, s, y, z} C = {v, w, x, y, z}Determine the following.A ? (B ? C)
A. {q, r, w, y, z} B. {q, s, w, y} C. {q, y, z} D. {q, s, u, w, y, z}
Mathematics
Find the area of the specified region.Inside the outer loop and outside the inner loop of the limacon r = 8 cos ? - 4
A. 16(? + 3
)
B. 8(4? + 3
)
C. 
(4? - 3
)
D. 8(2? - 3
)
Mathematics
Identify the type of surface represented by the given equation.
+ 
= 
A.
| Hyperbolic paraboloid |
B. Paraboloid
C. Elliptic cone
D. Ellipsoid
Mathematics