(b) Find the limits, they exist (a)
2x – y - 2
lim
(1,y)—(2,0) 2x - y - 4
x-y+218-20
lim
(x, y)+(0,0) Vi- ſy
(b)
2²2
(c) Given z = ln(.x2 + y²), show that
ar2
222
Əy2
= 0.​

What is the value of 1/3x + 7x when x = 5

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