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###### Deepak Patra posted an Question
January 22, 2022 • 13:04 pm 30 points
• IIT JAM
• Mathematics (MA)

# Q.60-let z = f(x.y), where fy) has continuous second order partial derivatives, and f. (2,1) = 5.6(2.1) =-2.fr(2.1) = 2, f(2.1) = 1.6y(2.1) = -4, then g(r(t),yt

Q.60-Let z = f(x.y), where fy) has continuous second order partial derivatives, and f. (2,1) = 5.6(2.1) =-2.fr(2.1) = 2, f(2.1) = 1.6y(2.1) = -4, then g(r(t),yt) when x()= 2t.y(t) = t and t = 1, is

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• ##### Anonymous User Best Answer

check attachment

sir could you please send the formal formula for this .... i didn't understand the 2nd derivative ???

for find dfx/dt replace z by fx in first derivative

sir how do i proceed further ....

check

got it

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