Verify that each equation is an identity.
+ 1 = 2 sin2?
What will be an ideal response?
+ 1 = 
+ 1 = 
- 
+ 1 = sin2? - 
+ 1 
= 2 sin2?
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Graph the equation.49x2 - y2 - 784x - 18y + 654 = 0
A. 
B. 
C. 
D. 
Solve the problem.The grades are given for a student for a particular semester. Use weighted means to find the grade point average. Assume the grade point values are A = 4, B = 3, C = 2, D = 1, and F = 0. Round your answer to the nearest tenth when necessary.
D2 A1 A1 F2 A2
A. 2.3 B. 1.6 C. 8 D. 2.6
Provide an appropriate response.For approximately what values of x can sin x be replaced by 
with an error of magnitude no greater than 
?
A. |x| < 0.42537 B. |x| < 0.33064 C. |x| < 0.36889 D. |x| < 0.27495
Solve.Find the equation of a line normal to the curve of 
at 
A. -6
x + 3y - 6
- ? = 0
B. -3
x + 9y - 9 + 
? = 0
C. -3
x + 3y + 3
- ? = 0
D. 
x + 3y - 
- ? = 0