Question

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Answer 1

Answer:

Solution:-

f:N→Y

f(x)=4x2+12x+15

A function is invertible if the function is one-one and onto.

Let x1,x2∈N, such that

f(x1)=f(x2)

4x12+12x1+15=4x22+12x2+15

⇒(x12−x22)+3(x1−x2)=0

⇒(x1−x2)(x1+x2+3)=0

∵x1,x2∈N

⇒x1+x2+3

Answer 2

Answer:

Ridhi Sharma from delhi

the environment is consist of biosphere lithosphere, hydrosphere and atmosphere it's chief components are soil, air, water, organisms and solar energies