Question

if (x+ 1/ x) is 5 then value of (x×x+1/x×x) is​

Answer 1

Answer:

x+1/x=5

x+1=5x then x=1/4

x²+1/ײ=17/16×16/1=17

so and is 17

Answer 2

Step-by-step explanation:

But if you consider the domain part wise as for x>0 the minimum value is +2 and maximum is +infinity. But for x<0 the maximum value is -2 and minimum is -infinity. The derivative test doesnt fail for this function. It gives you the correst answer that at x=+1 or -1 there is a horizontal tangent, which is infact true.