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Nilanjan Bhowmick AIR 3, CSIR NET (Earth Science)
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sir how do you know that angle should be from -90 to 90
x²+y²=2ax in first and third quarter
convert into poler form
Sir i am able to take out range of r but not of angle.
x²+y²=2ax put x= r cos© y = r sin© we get r²= 2ar cos © => r=0 or r= 2a cos© which is circle lie in 1 and 4th quarter