so, x =
and y =
Hence, the answer is the first one.
Write the summation to estimate the area under the curve y = 1 + x^2 from x = –1 to x = 2 using 3 rectangles and right endpoints
.
the summation from i equals negative 1 to 2 of the quantity i squared plus 1
the summation from i equals 0 to 2 of the quantity i squared plus 1
the summation from i equals 1 to 3 of the quantity i squared plus 1
None of these
the summation from i equals negative 1 to 2 of the quantity i squared plus 1
the summation from i equals 0 to 2 of the quantity i squared plus 1
the summation from i equals 1 to 3 of the quantity i squared plus 1
None of these
1 answer:
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Start with
Divide both sides by -3
If the absolute value of a number is 4, that number can either be 4 or -4: we have the two solutions
