Solve the problem.Draw a triangle so that tan 
= u. The hypotenuse of the triangle with have length 
. Use the illustration and the double angle formulas to write sin ? and cos ? in terms of u. 
What will be an ideal response?
sin ? = 
; cos ? = 
Mathematics
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Graph the ellipse.49x2 + 16y2 = 784
A. 
B. 
C. 
D. 
Mathematics
Find the domain of x in the expression.
?
?
A. 
B. 
C. 
D. 
E. 
Mathematics
Solve the initial value problem for x as a function of t.(2t3 - 2t2 + t - 1) 
= 3, x(2) = 0
A. x = ln 
- 
ln 
+ 
ln 4.5
B. x = ln 
- tan-1 
t - ln 
+ tan-1 2
+ ln 4.5
C. x = ln 
- 
tan-1 
t + 
tan-1 2
D. x = ln 
- 
tan-1 
t - 
ln 
+ 
tan-1 2
+ 
ln 4.5
Mathematics
Provide an appropriate response.What is the amplitude for the function y = 3 sin 2x?
A. 2 B. 2x C. 6x D. 3
Mathematics