Determine the principal value without using a calculator.- 3
A. Not real number
B. 4
C. 2
D. -2
Answer: D
Mathematics
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Use a finite sum to estimate the average value of the function on the given interval by partitioning the interval and evaluating the function at the midpoints of the subintervals.f(t) = 4e-t cos 2?t on [-2, 3] divided into 5 subintervals (Round to the nearest hundredth.)
A. -5.63 B. -76.57 C. 5.63 D. -29.63
Mathematics
Find the indicated function value.f(x) = x - 5, g(x) = x - 6Find (f + g)(3).
A. 5 B. 7 C. 17 D. -5
Mathematics
Find the area of the triangle. If necessary, round the answer to two decimal places. 
A. 3.87 B. 1.73 C. 53.67 D. 16.97
Mathematics
Determine whether the statement is true or false given that f(x) = ln x. ? f(x - 7) = f(x) - f(7), x > 0 ?
A. True B. False
Mathematics