Simplify.
A. - 
B. 
C. 
D. - 
Answer: A
Mathematics
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Solve.In the study of alternating electric current, capacitive voltage is given by 
, where f is the number of cycles per second, i is the maximum current, and t is the time in seconds. Solve the equation for t.
A. t = 2?f cos 
B. t = 
arccos 
C. t = 2?f arccos 
D. t = 
arccos 
Mathematics
Solve the equation and check your solution.
= 
A. t = 4, t = 6
B. t = 0, t = 
C. t = 0
D. t = 0, t = 36
Mathematics
Find the equation of the following:
(a) Graph: 
(b) 
c) Find f (1) .
(d) Is f continuous at 1 ?
Mathematics
Solve for the specified letter.P = 2l + 2w, for w
A. w = 
- 2l
B. w = 
C. w = P - 2l - 2
D. w = 
Mathematics