Prove the identity.2 cot 2x cos x = csc x - 2 sin x
What will be an ideal response?
Answers may vary. One possible solution is:
2 cot 2x cos x = 
= 
= 
- 2 sin x = csc x - 2 sin x.
Mathematics
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Find the standard equation of the circle that satisfies the conditions.Endpoints of a diameter (-8, 7) and (-4, 8)
A. 
2 + 
2 = 17
B. 
2 + 
2 = 369
C. 
2 + 
2 = 145
D. 
2 + 
2 = 
Mathematics
Graph the linear inequality in two variables.x - y < -5
A. 
B. 
C. 
D. 
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Solve the problem.Below is a table of data from a high school survey given to 500 parents. Find the probability that a randomly chosen parent would agree or strongly agree that the school is clean. Round to the nearest hundredth.
A. 0.38 B. 0.42 C. 0.37 D. 184
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Determine whether the equation defines y as a function of x. y = |x|
A. function B. not a function
Mathematics