let a = min (x²+4x+5,x belongs to R ) and b = lim??0 1-cos 2?÷?²then find the value of a-b÷a+b

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Sunil Raikwar · Answer

a=(x+2) 2 +1 so minimum value of a is 1 b=lim(x tend to 0) {1-cos2x/x 2 }=lim(x tend to 0) {2sin 2 x/x 2 }=2lim(x tend to 0){sinx/x}=2 (a-b)/(a+b)=(1-2)/(1+2)=-1/3 Thanks & Regards Sunil Raikwar askIITians faculty

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let a = min (x²+4x+5,x belongs to R ) and b = lim??0 1-cos 2?÷?²then find the value of a-b÷a+b

let a = min (x²+4x+5,x belongs to R ) and b = lim??0 1-cos 2?÷?²then find the value of a-b÷a+b

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