Prove the identity.
= 
What will be an ideal response?
Answers may vary. One possible solution is:
= 
= cos2? - cos ? sin ? + sin2? = 1 - cos ? sin ? = 
= 
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For the point given in rectangular coordinates, find equivalent polar coordinates 
for 
and 
Approximate ? to the nearest hundredth of a radian.(-7, -24)
A. (25, 4.43) B. (50, 1.29) C. (25, 1.29) D. (25, 6.00)
Solve the problem.The perimeter of a rectangle must be no greater than 70 meters. The width must be 13 meters. Find the greatest possible value for the length of the rectangle.
A. 57 meters B. 22 meters C. 83 meters D. 48 meters
Solve and simplify.
? t = 114
A. 26 B. 342 C. 114 D. 133
A curve passes through the point (8, 2) and has the property that the slope of the curve at every point P is times the y-coordinate P. What is the equation of the curve?
