Find the area of the specified region.Inside the cardioid r = ?(1 + sin ?), ? > 0

A.  - 2?2
B.
C. 2??
D.  + 2?2

Answer: B

Mathematics

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Find the gradient field F of the function f.f(x, y, z) = ln (x4 + y7 + z7)

A. F =  ln ( y7 + z7)i +  ln (x4 + z7)j +  ln ( x4 + y7)k
B. F = i + j + k
C. F = i + j + k
D. F = i + j + k

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Mathematics

Evaluate the expression by first changing the form. Verify the answer by use of a calculator. sin 265° cos 25° - cos 265° sin 25°

A.
B. - 
C. - 
D.

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Mathematics

Find the LCD for the list of rational expressions. , 

A. t - 2 B. t C. t(t - 2) D. 54

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Mathematics

Fill in the blank with one of the words or phrases listed below. When two lines intersect, four angles are formed. Two of these angles that share a common side are called  angles.

A. supplementary B. vertical C. adjacent D. complementary

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Mathematics