jise ma respect deta hu oh mere 100 time reply likhne par vi reply nah

1.	jise ma respect deta hu oh mere 100 time reply likhne par vi reply nahi karti ya karta kitne matlabi ha yeh duniya
Answer» 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

jise ma respect deta hu oh mere 100 time reply likhne par vi reply nahi karti ya karta kitne matlabi ha yeh duniya

Answer»

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