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2x+5xy* 1) Let f(x,y) = *3+x3y2 Which among the following is true about limf(x,y)? (x,y)--(0,0) a. By using the two path test

2) Let f(x,y) Vx+1-y+1 xy Then lim f(x,y) (xy)+(0,0) a. is 0 b.is c. is 1 d. does not exist a. C. d. Vx+1-Vy+1 x-y if xy 3) L

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Answer #1

Answer (1) f(ny) = 245 + sagt * + u?y Consider the path = mu hen lim 245 + 5ng4 (ney) – (0,0) 45+1 342 = lim 22 + (54) (my 49(2) #C• 3) = 4 - Iян -Я — #c9) = [ин - чи -9 X 9 Jute & Ги + Гун X •9) = ( 4 )- (9) (1-9) ((a + Гуи) 3 (9) = (1-9) (-9)( ( +( 3 ) 3 f(x,y) rast - JyH a-g if ney -ld if a=g At (0,0) (i) f(0,0) = 1 100- f(,)) = 1 (*.y)+(90) f(0,0) [thes es done in (2

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