Prove the identity.tan2x + cos 2x = 1 - cos 2x tan2x
What will be an ideal response?
Answers may vary. One possible solution is:
tan2x + cos 2x = 
+ (1 - 2 sin2 x)
= 
= 
= 
= 1 - cos 2x tan2x.
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Answer the question.Which of the following statements is false?
A. The series 
must have no negative terms in order for the Direct Comparison test to be applicable.
B. The sequences {an} and {bn} must be positive for all n to apply the Limit Comparison Test.
C. If {an} and {bn} meet the conditions of the Limit Comparison test, then, if 
=0 and 
converges, then 
converges.
D. All of these are true.
Approximate the value using a calculator. Express answer rounded to three decimal places.e?
A. 23.141 B. 22.459 C. 8.540 D. 5.860
Graph the parabola.x = -3(y + 2)2 - 3 
A. 
B. 
C. 
D. 
Solve the problem.Find the perimeter of the polygon with the following vertices. Round to the nearest hundredth. A(1, 1), B(2, 5), C(5, 4), D(4, 2), E(3, 2)
A. 10.52 B. 12.76 C. 11.52 D. 14.64