Find the exact value of the expression.sin 260° cos 20° - cos 260° sin 20°

A. - 
B.
C. - 
D.


Answer: C

Mathematics

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Solve the problem.Find the derivative of the function    at the point    in the direction in which the function increases most rapidly.

A. 5 B. 6 C. 15 D. 10

Mathematics

Decide whether the relation represents a function. If it does, give the domain and the range.{(-4, -3), (-2, -3), (4, -3)}

A. Not a function B. Function; domain: {-3, -3, -3}; range: {-4, -2, 4} C. Function; domain: {-4, -2, 4}; range: {-3} D. Function; domain: {-4, -2, 4}; range: {-3, -3, 0}

Mathematics

Let p represent a true statement, while q and r represent false statements. Find the truth value of the compound statement.(p ? ~q) ? r

A. True B. False

Mathematics

Find the intervals on which the function is continuous.y = 

A.
B.
C.
D.

Mathematics