Use the fact that the trigonometric functions are periodic to find the exact value of the expression. Do not use a calculator.tan 720°
A. 0
B. -1
C. 
D. undefined
Answer: A
Mathematics
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Use the information given about the angle ? to find the exact value of the indicated trigonometric function.cot ? = -3, sec ? > 0Find sin 
.
A. 
B. -
C. 
D. 
Mathematics
Find the y-intercepts and any x-intercepts.y = 2x2 - 4x
A. y-intercept (0, 0), x-intercepts (0, 0) and (0, 2) B. y-intercept (0, 0), x-intercept (2, 0) C. y-intercept (0, 0), x-intercepts (0, 0) and (-2, 0) D. y-intercept (0, 0), x-intercepts (0, 0) and (2, 0)
Mathematics
Graph the line containing the point P and having slope m.P = (2, -8); m = - 
A. 
B. 
C. 
D. 
Mathematics
Evaluate.140 + 50
A. 1 B. 2 C. 0 D. 19
Mathematics