Use the given transformation to evaluate the integral - Problem 15.9.17 Cengage Calculus

Problem 15.9: 17, Cengage Calculus 9th Edition
Cengage Calculus, 9th Edition Chapter 15: Multiple Integrals 15.9 Change of Variables in Multiple Integrals, problem 17, 15.9.17, 17, 18, 19, 20, 21, and 22 Use the given transformation to evaluate the integral. 17.
, where is the triangular region with vertices , , and ; , 17.
, where R is the triangular region with vertices (0,0), (2,1), and (1,2); x=2u+,v, y=u+2v

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