Find an equivalent equation in polar coordinates.x2 + y2= 121
A. r = 11 sin ?
B. r = 11 cos ?
C. r = 121
D. r = 11
Answer: D
Mathematics
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Perform the indicated operations and simplify the result so there are no quotients.sec ? - 
A. 1 + cot ? B. sin ? tan ? C. sec ? csc ? D. -2 tan2?
Mathematics
Solve the inequality and express the solution set in interval notation. Graph the solution set on the real number line.11 - 3(3 - x) ? 8
A. x ? 3; (-?, 3]
B. x ? 2; [2, ?)
C. x ? 2; (-?, 2]
D. x < 2; (-?, 2)
Mathematics
Use an analytic method to solve the equation.
+ 
= 4
A. {0}
B. {-2}
C. {
, -2}
D. {2, -2}
Mathematics
Multiply.
? 
A. 
B. 
C. 
D. 
Mathematics