Establish the identity.
= cot 
What will be an ideal response?
= 
= 
= cot 
Mathematics
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Provide an appropriate response.The "trapezoidal" sum can be calculated in terms of the left and right-hand sums as ? .
A. left-hand sum - right-hand sum
B. 
C. left-hand sum + right-hand sum
D. None of the above is correct.
Mathematics
Assume that x, y, and z are positive numbers. Use the properties of logarithms to write the expression 
as the logarithm of one quantity.
What will be an ideal response?
Mathematics
Find a system of inequalities with the given graph.
A. y > 5 x ? 5 B. y > 5 x ? -3 C. y ? 5 x ? -3 D. x > 5 y ? -3
Mathematics
Is the following correspondence a function?
A. No B. Yes
Mathematics