If f:RR is a twice differentiable function such that f(x)>0forallxR,and f(21)=21,f(1)=1 then: fprime(1)>1 (b) fprime(1)≤0(c)21<fprime(1)<1 (d)="" 0<fprime(1)≤21
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Differentiate 3 e−3xlog(1+x)
by first principles.
with respect to x
Find function f(x) which is differentiable and satisfy the relation f(x+y)=f(x)+f(y)+(ex−1)(ey−1)∀x,y∈R,andf′(0)=2.
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