Question 180(i)
Simplify
[(12)2−(14)3]−1×2−3
Given, [(12)2−(14)3]−1×2−3=(14−164)−1×2−3=(16−164)−1×2−3=(1564)−1×2−3=6415×18 [∵a−m=1am]=815
Question 180(vi)
Simplify : (3−2)2×(52)−3×(t−3)2(3−2)5×(53)(−2)×(t−4)3
Question 180(iv)
(15)45×(15)−60−(15)28×(15)−43
Question 106
Simplify and write the result in decimal form: (1÷29)+(1÷315)+(1÷223)