Given that;
For any positive a,b; let \(I(p)=(a+b)^b. J(p)=a^b+b^b\)
For 0≤p≤1
Then let us take a=3 , b=4
then p=0.5
\(i(p)=5; J(p)=7\)
\(\therefore J(p)>I(p)\)
Now a= ⅓, b= ¼
when p=1
\(I(p)= \frac{7}{12}; J(p)=\frac{7}{12}\)
\(\therefore I(p)=J(p)\)
\(I(p)\)≤\(J(p)\)
Increasing Function:
On an interval I, a function f(x) is said to be increasing, if for any two numbers x and y in I such that x < y,
⇒ f(x) ≤ f(y)
Decreasing Function:
On an interval I, a function f(x) is said to be decreasing, if for any two numbers x and y in I such that x < y,
⇒ f(x) ≥ f(y)
Strictly Increasing Function:
On an interval I, a function f(x) is said to be strictly increasing, if for any two numbers x and y in I such that x < y,
⇒ f(x) < f(y)
Strictly Decreasing Function:
On an interval I, a function f(x) is said to be strictly decreasing, if for any two numbers x and y in I such that x < y,
⇒ f(x) > f(y)