strictly for engineers. baaki log padhna bhi mat. warnaa gaali doge.
Step 1:
square(1)=1
square(2)=2+2
square(3)=3+3+3
square(4)=4+4+4+4
.
.
.
square(x)=x+x+x+x ... x times
Step 2:
Differentiate on both sides
LHS = d/dx (square(x)) = 2x
RHS = d/dx (x+x+x+ ... x times) = 1+1+ ... x times = x
2x=x
How is this possible? Happy solving. Agar fundae gol huwe to pataa chal jayegaa.
-Kashy
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4 comments:
here function is defined only for positive integers. Hence function is not continuous. So d/dx of x^2 is not defined.
sahi jawab .. aap 20 lakh jeet gaye ho .. ab kyaa aap bumper round khelnaa chahengein?
oh.. I came in too late would have won it...
also d/dx of x^x is not x
cant ignore "x" times .....
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