Verify the identity.
= cot 
What will be an ideal response?
= 
= 
= cot 
Mathematics
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Rewrite the expression with positive exponents and simplify.
?
A. ?
B. 
C. 
D. 
E. 
Mathematics
Calculate the area of the surface S. S is the portion of the cone 
+ 
= 
that lies between z = 2 and z = 4.
A. 
?
B. 
C. 
?
D. 
?
Mathematics
Solve each of the following systems of equations. If the system is inconsistent or dependent, say so.- x - 7y = -4-4x + 7y = 19
A. (-3, 1) B. (-2, 0) C. No solution D. (-1, -3)
Mathematics
Solve the inequality.For the function h(x) = 
, solve h(x) < 0.
A. [2, 6] B. (-?, 0) ? (2, 6) C. (-?, 2) ? (6, ?) D. (-?, 2] ? [6, ?)
Mathematics