Subtract.(6x8 + 8x7 - 7x3 + 7) - (9x8 - 4x5 + 2x3 - 4)
A. 3x8 + 8x7 + 4x5 - 9x3 + 11
B. -3x8 + 8x7 - 4x5 - 9x3 + 11
C. 3x8 + 8x7 - 4x5 - 9x3 + 11
D. -3x8 + 8x7 + 4x5 - 9x3 + 11
Answer: D
Mathematics
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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. 3.761 C B. 1.254 C C. 11.284 C D. 3.738 C
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Use the given information to find the exact value of the trigonometric function.sin ? = 
, ? lies in quadrant I
Find sin 
.
A. 
B. 
C. 
D. 
Mathematics
Find the limit by direct substitution.
What will be an ideal response?
Mathematics