Prove the identity.
= 2 cot2x - csc2x
What will be an ideal response?
 =  | Using the double-angle identity |
- 
= 2 cot2x - csc2x
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Find the function with the given derivative whose graph passes through the point P.r'(?) = csc ? cot ? - 3, P
A. r(?) = -csc ? - 3? + 
+ 
B. r(?) = -csc ? - 
C. r(?) = -csc ? - 3?
D. r(?) = csc ? - 3? + 
+ 
As part of a study, 800 college football players are randomly chosen and their weights taken. The distribution of the weights is approximately normal. The average weight is 235 pounds and the standard deviation is 25 pounds.Approximately how many players had weights between 235 and 252 pounds?
A. 37 B. 100 C. 50 D. 200 E. none of these
Find VR at t = 8 msec when a series RC circuit is connected to a 24 V supply. R = 10 K and C = 1 æF.
a. 8.8 V b. 10.8 V c. 12.2 V d. 15.2 V e. 17.7 V
Solve the problem.How long will it take for an investment to double in value if it earns 4.25% compounded continuously? Round your answer to three decimal places.
A. 25.85 yr B. 8.155 yr C. 16.309 yr D. 17.715 yr