Use a half-angle formula to find the exact value of the expression.sin 

A.
B.
C. - 
D. - 


Answer: B

Mathematics

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Which of the following is not true about the angles in a parallelogram??

A. ?Opposite angles are congruent. B. ?Adjacent angles are congruent. C. ?Adjacent angles are supplementary. D. ?The sum total of interior angles in a parallelogram equals 360?. E. ?When a parallelogram is bisected at a diagonal, the two triangles resulting are congruent because of the ASA Postulate.

Mathematics

Use power series operations to find the Taylor series at x = 0 for the given function.

A.
B.
C.
D.

Mathematics

Solve the problem.Find the area of the parallelogram determined by the points P(7, -5, 5), Q(-2, -9, 4),  and 

A.
B.  
C.  
D. 9

Mathematics

Evaluate the function.f(x, y) =  + xy; find f(-8, -8).

A. 65 B. 1 C. 128 D. 63

Mathematics