The question asks for the PDF of Y=(X1)2+(X2)2
Given that X1 and X2 are independent standard normal variables.
I found that the pdf for (Xi)2 is
fX2(x)=12πe−x/2x12
for x≥0.
But I'm stuck on what to do next.
How to find limh→0sin(ha)h without lhopital rule? I know when I use lhopital I easy get $$ \lim_{h\rightarrow 0}...
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