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Nilanjan Bhowmick AIR 3, CSIR NET (Earth Science)
- IIT JAM
- Mathematics (MA)
How to solve 2nd question pls just show limit..
how to solve 2nd question pls just show limit... . .
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Deepak singh 1 Best Answer
see attached solution answer is 64π if any doubt then ask
there is misprint in your book , there should be 64π
sir, why have u taken A:y²+z²=16 ; in question it's given x²+y²+z²=16
I have taken projection on y-z axis .So put x=0
in last step , area of circle = π×r^2 =16π
feel free to ask again
thanks a lot sir i got that step..
sir projection is there on xy axis because then only we will have cylinder x²+y²=4y...i thought that...pls tell my mistake sir..
wait..
sir basically i was referring this example
in question, it is saying to find surface area of x^2+y^2=4y =S , here there is no Z in S , So not possible to take projection on x-y plane , So we have took projection on y-z plane
sir in example i was referring there x²+y²=a² so there was no term of z then why projection on xy plane..pls tell sir
can you share complete example
I think answer will be same on taking any projection . try at once
feel free to ask again
sir this was example i was referring
okk sir i will try with different. projection