Solve the problem.Use the trigonometric identity tan 2x = 
to find Dxtan 2x.
A. 2 sec2x(1 - tan2x)
B. 2 sec2x(1 + tan2x)
C. 2 sec2x tan2x
D. 2 tan2x + tan3x
Answer: B
You might also like to view...
Find parametric equations for the line described below.The line through the points P(-1, -1, -1) and Q(-6, 7, 3)
A. x = t + 5, y = t - 8, z = -1t - 4 B. x = t - 5, y = t + 8, z = -1t + 4 C. x = -5t - 1, y = 8t - 1, z = 4t - 1 D. x = -5t + 1, y = 8t + 1, z = 4t + 1
Solve the inequality.
+ 4 > 2
A. b < 2, b > 6 B. b < -6, b > -2 C. -6 < b < -10 D. b < -6, b > -10
Graph the two functions on one coordinate plane.f(x) = x3g(x) = (x + 7)3 - 2
A. 
B. 
C. 
D. 
Solve the problem.The Family Fine Arts Center charges $22 per adult and $12 per senior citizen for its performances. On a recent weekend evening when 510 people paid admission, the total receipts were $7290. How many who paid were senior citizens?
A. 117 senior citizens B. 303 senior citizens C. 393 senior citizens D. 207 senior citizens