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Let a = min( x^2 + 4x + 5, x ? R) and b= lim??0 1-cos 2?/?^2 then find the value of a-b/a+b .

Let a = min( x^2 + 4x + 5, x ? R) and b= lim??0 1-cos 2?/?^2
then find the value of
a-b/a+b .

Grade:Upto college level

1 Answers

Sunil Raikwar
askIITians Faculty 45 Points
7 years ago
a=min[(x+2)2+1]=1
b= lim(x tend to 0)[2sin2x/x2]=2lim(x tend to 0)[sinx/x]2=2
a-b/a+b=1-2/1+2=-1/3

Thanks & Regard
Sunil Raikwar
askIITians faculty


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