Question 7(iv) Simplify: (iv) (−2)3×(−10)3
(iv) (−2)3×(−10)3
= (−2)×(−2)×(−2)×(−10)×(−10)×(−10) = (−8)×(−1000) ((−1)odd number=−1) = 8000
Question 6(iv) Simplify: (iv) 3×44
Simplify:
(i) (− 4)3 (ii) (− 3) × (− 2)3
(iii) (− 3)2 × (− 5)2 (iv)(− 2)3 × (−10)3
Evaluate each of the following:(i) 23−35
(ii) −47−2(−3)
(iii) 47−(−5)(−7)
(iv) −21−59
Classify the following numbers as rational or irrational:
(i) 2−√5 (ii) (3+√23)−√23 (iii) 2√77√7
(iv) 1√2 (v) 2π