Establish the identity.(a tan u + b)2 + (b tan u - a)2 = (a2 + b2) sec2 u
What will be an ideal response?
(a tan u + b)2 + (b tan u - a)2 = a2 tan2u + 2ab tan u + b2 + b2 tan2u - 2ab tan u + a2 
= (a2 + b2) sec2 u
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Find the area.
a = 7.0 ft, b = 8.0 ft
A. 15 ft2 B. 28 ft2 C. 56 ft2 D. 112 ft2
Set the viewing rectangle of your graphing calculator to 
by 
to solve the problem.Graph the following set of parametric equations for 0 ? t ? 2? and identify the letter of the alphabet that the graph resembles.x1 = -4,y1 = -2 + 2.8t/?x2 = -4 + 1.96t/?,y2 = 0.8x3 = -0.08,y3 = -2 + 2.8t/?
A. I B. A C. H D. K
Write the expression with only positive exponents and evaluate if possible. Assume all variables represent nonzero real numbers.3-3
A. -9
B. 
C. - 
D. -27
Add and subtract as indicated. Simplify and leave the numerator and denominator in your answer in factored form.
+ 
- 
A. 
B. 
C. 
D. 