Q5 of 105 Page 17

Show that is a decreasing function on (0, ∞).

we have


let x1,x2 (0,) We have, x1 > x2


⇒


⇒ f(x1) < f(x2)


Hence, x1 > x2⇒ f(x1) < f(x2)


So, f(x) is decreasing function


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