Use Identities to find the exact value.cos 36° cos 24° - sin 36° sin 24°
A. 1
B. 
C. 
D. 
Answer: C
Mathematics
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Write the compound statement in symbols.Let r = "The food is good," p = "I eat too much,"q = "I'll exercise."The food is good and if I eat too much, then I'll exercise.
A. (r ? p) ? q B. (r ? p) ? q C. r ? (p ? q) D. (r ? p) ? q
Mathematics
Find the exact value. If any are not defined, write undefined.tan(-180°)
A. 0 B. 1 C. Undefined D. -1
Mathematics
Determine, without graphing, whether the given quadratic function has a maximum value or a minimum value and then find that value.f(x) = -x2 + 2x - 5
A. minimum; - 4 B. maximum; 1 C. maximum; - 4 D. minimum; 1
Mathematics
Find an equivalent equation in polar coordinates.y = 8
A. r = 8 sin ? B. r = 8 sec ? C. r = 8 csc ? D. r = 8 cos ?
Mathematics