Q2 of 73 Page 89

If then show that

(i)


(ii)


Given:


(i)


Need to prove:


Now replacing x by we get,



⇒


⇒ [Proved]


(ii)


Need to prove:


Now replacing x by we get,



⇒


⇒


⇒ [Proved]


More from this chapter

All 73 →
20

The function is the formula to convert x °C to Fahrenheit units. Find

(i) F(0),


(ii) F(–10),


(iii) The value of x when f(x) = 212.


Interpret the result in each case.


 1

If f(x) = x2 – 3x + 4 and f(x) = f(2x + 1), find the values of x.

 3

If then show that

4

If then show that f{f(x)} = x.