Higher Engineering Mathematics, Sixth Edition

202 Higher Engineering Mathematics

Graphical solutions to Problems 6 and 7, Exercise 80, page 195

26

24

24

22

22

6

4

2

0 2 4 6

y

x

y 5

x^22 x 24

x 11

y 5

x^22 x 24

x 11

y^5

x^2

2

x 521

26

Figure 18.40

22

22

24

26

26 24 0

2

2 4 6

4

6

y^5

x

x

y

xy^2 2 x^2 y 1 2 x 2 y 5 5 xy^2 2 x^2 y^1 2 x^2 y^5 5

xy^2 2 x^2 y 1 2 x 2 y 5 5

Figure 18.41