Q13 of 73 Page 84

If f(x) = x2, find the value of .

Given: f(x) = x2

To find: …(i)


Firstly, we find the f(1.1)


Putting the value of x = 1.1 in the given eq., we get


f(1.1) = (1.1)2


⇒ f(1.1) = 1.21


Similarly,


f(1) = (1)2


⇒ f(1) = 1


Putting the value of f(1.1) and f(1) in eq. (i), we get



Hence, the value of


More from this chapter

All 73 →
11

Let f = {(0, -5), (1, -2), (3, 4), (4, 7)} be a linear function from Z into Z. Write an expression for f.

 12

If f (x) = x2, find the value of .

14

Let X = {12, 13, 14, 15, 16, 17} and f : A → Z : f(x) = highest prime factor of x. Find range (f)

 15

Let R+ be the set of all positive real numbers. Let f : R+→ R : f(x) = logex. Find

(i) range (f)


(ii) {x : x ϵ R+ and f(x) = -2}.


(iii) Find out whether f(x + y) = f(x). f(y) for all x, y ϵ R.