Grade 10Differential Calculus
find the values of x for which the rate of change of (x^4/4)+(x^3/3)-x is more than x^4/4 ?
find the values of x for which the rate of change of (x^4/4)+(x^3/3)-x is more than x^4/4 ?
1 Answer
Sher Mohammad
x^3 + x^2 > x^4>4
x^4-4x^3-4x^2<0
x^2(x^2-4x-4)<0
roots 2+- 2sqrt(2),
between the the two roots above conditions satisfy.
x^4-4x^3-4x^2<0
x^2(x^2-4x-4)<0
roots 2+- 2sqrt(2),
between the the two roots above conditions satisfy.
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