Solve the problem by integration.The current i (in A) as a function of the time t (in s) in a certain electric circuit is given by 
Find the total charge that passes a given point in the circuit during the first three seconds.
A. 1.015 C
B. 16.242 C
C. 4.060 C
D. 4.043 C
Answer: C
Mathematics
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Solve the problem.Find the tangent to y = cos x at x = 
.
A. y = - x + 
B. y = 1
C. y = x + 
D. y = - x - 
Mathematics
Find all real numbers that satisfy the equation.
sec 2x = 2
A. 
B. 
C. 
D. 
Mathematics
Find the average of the set of numbers.
and 
A. 
B. 
C. 
D. 
Mathematics
A number is given in scientific notation. Write the number in decimal notation.The diameter of a certain molecule is 7.922 × 10-7 meters.
A. 0.0000007922 B. 0.0007922 C. 0.00000007922 D. 0.000007922
Mathematics