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Speak With a Friendly Mentor. ###### Deepak Patra posted an Question
July 21, 2021 • 20:24 pm 30 points
• IIT JAM
• Mathematics (MA)

## Find the extreme value of f(x, y) = x* + 2y on the disk x* + yž s1. (a) max = 2, min = 0 (b) max= 1, min = 0 (c) max=3, min = 0 (d) max= 2, min = 1

Find the extreme value of f(x, y) = x* + 2y on the disk x* + yž s1. (A) max = 2, min = 0 (B) max= 1, min = 0 (C) max=3, min = 0 (D) max= 2, min = 1

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• ##### Deepak singh 1 Best Answer

Refer attached option a is correct

sir can we solve all question based on lagranges multiplier by way u proceeded...

this question was simple , so there was no need to use langrange .

this method is also a part of langrange .

sir in simple question we used to check by rt–s² ..so it means if region will be given then we don't use that rt–s² concept

rt-s^2 concept is used when only f(x,y) is given and no region given .

here region is given , so we don't use rt-s^2 concept

ok sir ..got it now thanks a lot sir

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