The value of 3×(5)13×7×(10)13×5×(20)13
1050
1005
1500
950
Given 3×(5)13×7×(10)13×5×(20)13 ∵(ab)m = (am)×(bm) ⇒(3×7×5)×(5×10×20)13 ⇒105×(5×10×2×10)13
⇒[105]×[103]13
∵(am)n = (a)m×n ⇒[105]×[10]3×13=105×10=1050
Multiply the following fractions:
(i) (ii) (iii)
(iv) (v) (vi)
(vii)