Decide whether or not the given equation is an identity.tan x + cot x = sec x csc x
A. Yes
B. No
Answer: A
Mathematics
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Perform the indicated operation and simplify if possible.
A. 
B. 
C. 13
D. 
Mathematics
Write a numerical expression for the phrase and simplify it.The product of -5 and 9, subtracted from -1
A. -1 + (-5)(9); -46 B. [-1 - (-5)](9); 36 C. -1 - (-5)(9); 44 D. (-1)(-5)(9); 45
Mathematics
Solve the system of linear equations using the elimination method.
A. (2, 6, 9) B. (4, 9, -2) C. (-2, 9, 4) D. (2, 9, 6)
Mathematics
Simplify the expression.
A. 2x2 B. 4x C. 4x2 D. 2x6
Mathematics