Question

find the value of ( x+x(x)] when x=2​

Answer 1

Answer:

x+x(2)

=4×2

=8

8

i

s

t

h

e

a

n

s

w

e

r

Answer 2

Answer:

x∈[0,1]∪[2,∞].

Step-by-step explanation:

We know for incresing function we have f′(x)≥0

Therefore, f′(x)=2[x(x−2)][dxdx(x−2)]

or, f′(x)=2[x(x−2)][dxd(x2−2x)]

=2x(x−2)(2x−2)

=4x(x−2)(x−1)

For f′(x)≥0,

i.e., 4x(x−1)(x−2)≥0

The values of x are:

x∈[0,1]∪[2,∞].