Establish the identity.(cos ? + sin ?)2 + (cos ? - sin ?)2 = 2(cos2? + sin2?)
What will be an ideal response?
(cos ? + sin ?)2 + (cos ? - sin ?)2 
Mathematics
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Write an equivalent double integral with the order of integration reversed.
A. 
B. 
C. 
D. 
Mathematics
Use rational equations to solve the problems.A plane flies 430 miles with the wind and 310 miles against the wind in the same length of time. If the speed of the wind is 30 mph, what is the speed of the plane in still air?
A. 175 mph B. 210 mph C. 190 mph D. 185 mph
Mathematics
State whether the graph is or is not that of a function.
A. Yes B. No
Mathematics
Does the graph represent a function that has an inverse function?
A. No B. Yes
Mathematics