Example 3. Write the following sets in the roster form(i) D = {t l t3=

1.	Example 3. Write the following sets in the roster form(i) D = {t l t3= t, te R,
Answer» Since the set contains. only those real no's such that t³ = t so, t³-t = 0or t(t²-1) = 0 , therefore t can be 0, or t² = 1=> t = ±1 so, elements are -1,0,1 set in roster form D = {-1,0,1} I can't understand from whare1is originated ?

Example 3. Write the following sets in the roster form(i) D = {t l t3= t, te R,

Answer»

Since the set contains. only those real no's such that t³ = t so, t³-t = 0or t(t²-1) = 0 , therefore t can be 0, or t² = 1=> t = ±1

so, elements are -1,0,1

set in roster form D = {-1,0,1}

I can't understand

from whare1is originated