Establish the identity.cot(x + y) cot(x - y) = 
What will be an ideal response?
cot ( x + y) cot (x - y) = 
? 
= 
.
Mathematics
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Use the properties of parallel lines to solve the problem.Assume that m and n are parallel. Find the measures of angles A and B.
?A = (5x - 5)°, ?B = (4x + 26)°
A. 134°, 114° B. 98°, 150° C. 134°, 134° D. 150°, 150°
Mathematics
Find the interval of convergence of the series.
A. x ? 8 B. 6 ? x ? 8 C. -113 ? x ? 127 D. -? < x < ?
Mathematics
Rationalize the denominator.
A. 
B. 
C. 
D. 
Mathematics
Perform the indicated operation. Simplify, if possible.
- 
A. 
B. 
C. 
D. 0
Mathematics