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Rudhreswaran G posted an Question

April 21, 2021 • 23:14 pm

30 points

IIT JAM
Mathematics (MA)

Can som one tell this

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A
Alka gupta

see....
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is any formula is given for surface area in this problem
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and aslo why you introduced that root in surface area formula
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this is formula for surface area...
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see this....
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can we use this when ever we want to find surface area
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yes....this is formula for surface area...we can use it
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ok thnx
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A
Alka gupta Best Answer

see your complete solution....
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>
Deepak singh 1

Refer attached
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cartession eqn to what eqn that is not clearly visible
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we multiply with r , when we convert cartesian equation to polar coordinate
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and for limit , from figure is clearly clear..
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ok for this can we use gauss divergence theorem
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no , we can't use divergence theorem here
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and aslo tell that we want to find the area within the x^2+y^2=1
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this may be given in your question .. according to your image in post , region is a circle x^2+y^2=1 .
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ok
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so that is like limit for that surface area
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yes,
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ok
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and after the changing of the coordinates the rdr how it has came and with which we want to diff to bring thata
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see figure ..
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ok thanks
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