The given point lies on the graph of the unit circle and corresponds to a real number t. Find the value of the indicated trigonometric function of t.  Find sin t.

A.
B.
C.
D.


Answer: B

Mathematics

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Assume that the sequence converges and find its limit.a1 = 4,  an + 1 = 

A. -4 B. 16 C. 4 D. 1

Mathematics

Find all solutions of the equation. Express the solution in radians.cos x = 

A.  + 2n? or  + 2n?
B.  + 2n? or  + 2n?
C.  + 2n? or  + 2n?
D.  + 2n? or  + 2n?

Mathematics

Find the root. If the root is not a real number, so state. 

A. -625 B. 5 C. -5 D. not a real number

Mathematics

Find a unit vector u in the direction of the given vector.

A.
B.
C.
D.

Mathematics