h(x)=x3+x2+x+1 differentiating, we get h'(x)=3x2+2x+1 now, for the function, h'(x) D=22 - 4*1*3 = -8 hence, a is +ive and D is -ive... this implies that the function, h'(x) is +ive xR
hence, nowhere, on real axis, h'(x) is 0
consequently..no extrema.
Na pine ka shouk tha na pilane ka shonk tha. Hume to sirf NAZREIN milane ka shonk tha. Par kya karen hum nazre hi unse mila baithe jinhe nazron se PILANE ka shonk tha.
Moderation Team
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