Use the given information to find the exact value of the trigonometric function.sec ? = 4, ? lies in quadrant IFind cos .

A.
B.
C.
D.


Answer: C

Mathematics

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Find the area or volume.Find the area under the curve y =  bounded on the left by x = 3.

A.
B. 1
C. 4
D.

Mathematics

Find the limit, if it exists.

A. 1 B. 2 C. 4 D. Does not exist

Mathematics

Solve the system of linear equations.

A.
B.
C.
D.

Mathematics

Evaluate the expression.(-7)2

A. -14 B. -49 C. 14 D. 49

Mathematics