Prove the identity.4 csc 2x = 2 csc2 x tan x
What will be an ideal response?
4 csc 2x = 
= 
= 
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Express the sum using summation notation. Use 1 as the lower limit of summation and i for the index of summation.a + ar + ar2 + . . . + ar11
A. 
B. 
C. 
D. 
Solve the problem. If necessary, round your result to the nearest tenth unless instructed differently. The precise value of your approximation may depend on the conversion path that you choose.In a certain medium, sound travels at a speed of 5205 feet per second. How many meters per second does sound travel in this medium? Round to the nearest tenth.
A. 17,072.4 m/s B. 2030.0 m/s C. 4736.6 m/s D. 1561.5 m/s
Find the cube root of the number. Approximate the answer to the nearest hundredth whenever appropriate.343
A. 18 B. -7 C. 7 D. 49
Solve the problem.Find the equation of the line s with y-intercept (0, 3) and slope parallel to the slope of line t, 
A. y = - 
x + 3
B. y = 
x - 3
C. y = 
x + 3
D. y = 
x + 3