Find the limit.
sec2 x - tan2 y + z
A. 3
B. 2
C. 4
D. 1
Answer: B
Mathematics
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Simplify the expression.(-7x6yz8)2
A. -14x12yz16 B. -49x12y2z16 C. 49x12y2z16 D. 14x12yz16
Mathematics
Factor the binomial completely.s14 - a2
A. (s7 + a)2 B. (s7 - a)2 C. (s7 + a)(s7 - a) D. prime
Mathematics
Simplify the expression. Write with only positive exponents. Assume that variables represent positive real numbers.x1/5x4/5
A. x4/5
B. 
C. x
D. x4/25
Mathematics
Is the proportion set up correctly?
= 
A. Yes B. No
Mathematics