Evaluate the double integral 4x^3 dA, where R is the region bounded by the graphs of y=(x-1)^2 and y= -x+3.
The Attempt at a Solution
The answer in the book is 72/5. But I got 45 as the answer.
Here's my work:
double integral of 4x^3 dx dy from -1 to 2 for dx and from 1 to 4 for dy
integral of x^4 (evaluate from -1 to 2) dy from 1 to 4 for dy
Is my answer correct or the book's answer is right?