Use the Half-angle Formulas to find the exact value of the trigonometric function. tan 

A. -1 - 
B. 1 - 
C. 1 + 
D. -1 + 


Answer: B

Mathematics

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Solve the problem.The medians of a triangle intersect at a point. The distance from the vertex to the point is exactly two-thirds of the distance from the vertex to the midpoint of the opposite side. Find the exact distance of that point from the vertex A(3, 4) of a triangle, given that the other two vertices are at (0, 0) and (8, 0).

A.
B. 2
C.
D.

Mathematics

Two vectors u and v are given. Find the angle (expressed in degrees) between u and v.

(a) 1.3° (b) 1.2° (c) 63.9° (d) 36.9° (e) none of these

Mathematics

Decide if the given values of x are solutions to the equation (Y/N). = 5; x = 3, x = - 3

A. Yes, Yes
B.

No, Yes

C. Yes, No
D. No, No

Mathematics

Find the intervals on which the function is continuous.y = 

A. continuous on the interval 
B. continuous on the interval 
C. continuous on the interval
D. continuous on the interval 

Mathematics