Simplify the expression to either 1 or -1.tan 
tan x
A. 1
B. -1
Answer: A
Mathematics
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Using the pair of parametric equations, find the values of A and B in the table.x = 2t + 5, y = t - 3, for 0 ? t ? 7
A. A = 7, B = -2 B. A = 8, B = 4 C. A = 2, B = -3 D. A = 13, B = 1
Mathematics
Solve the equation.(x + 2)(x - 1) = (x + 1)2
A. 
B. 
C. 
D. {3}
Mathematics
Find the exact value of the logarithmic expression.log4
A. 1
B. 
C. 
D. 4
Mathematics
Factor completely. If the polynomial cannot be factored, say it is prime.9x2 - 39x - 30
A. 3(3x + 2)(x - 5) B. (9x + 6)(x - 5) C. 3(3x - 2)(x + 5) D. prime
Mathematics