Simplify:
(i) √5+√3√5−√3+√5−√3√5+√3
(ii) 12+√3+2√5−√3+12−√5
(iii) 2√5+√3+1√3+√2−3√5+√2
Simplify :
(i) 3√2−2√33√2+2√3+√12√3−√2
(ii) 7+3√53+√5−7−3√53−√5
2. Write in exponential form.
a) 5 × 5 × 5 × 5 × 5 = ____________
b) (4) × (4) × (4) = ____________
c) 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 = ____________
d) (8) × (8) × (8) × (8) = ____________
e) 3 × 3 × 3 × 3 × 3 × 3 × 3 × 3 = __
Question 6
Which of the following expressions show that rational numbers are associative under multiplication.
(a) 23×(−67×35)=(23×−67)×35
(b) 23×(−67×35)=23×(35×−67)
(c) 23×(−67×35)=(35×23)×−67
(d) (23×−67)×35=(−67×23)×35