Let and . Find

(a) 20 + i
(b) 20 - 20i i
(c) 20
(d) 0 - 20i
(e) none


(d) 0 - 20i

Mathematics

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Evaluate the integral.

A. - y2 sin 9y + y cos 9y +  sin 9y + C
B.  y2 cos 9y - y sin 9y -  cos 9y + C
C. - y2 cos 9y + y sin 9y +  cos 9y + C
D. - y2 cos 9y + y sin 9y +  cos 9y + C

Mathematics

Provide an appropriate response.Simplify:  

What will be an ideal response?

Mathematics

Write the word phrase as an algebraic expression. Use x to represent the unknown number.The product of -5 and the sum of a number and 36

A. -5x + 36 B. -5 + 36x C. -5(x + 36) D. -180x

Mathematics

Perform the indicated operation and write your answer with positive integer exponents. 

A.
B.
C.
D.

Mathematics