Use half-angle formulas to find the exact value for the following:
?
cos 165°

What will be an ideal response?



Mathematics

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Solve the problem.The accompanying figure shows the graph of y = -x2 shifted to a new position. Write the equation for the new graph.

A. y = -x2 - 4 B. y = -(x + 4)2 C. y = -(x - 4)2 D. y = -x2 + 4

Mathematics

Find the cross product a x b.

Mathematics

Identify and graph the polar equation.r = 4 + 5 cos ? 

A.

limacon without inner loop
B.

limacon with inner loop
C.

limacon with inner loop
D.

limacon without inner loop

Mathematics

Solve and graph the solutions.|x + 1.5| ? 4

A.

B.

C.

D.

Mathematics