1.

Which of the following is not equal to 1 ?(a) (23 × 33)/(4 × 18) (b) [(-2)3 × (-2)4] ÷ (-2)2(c) (30 × 53)/(5 × 25) (d) 24/(70 + 30)3

Answer»

(d) 24/(70 + 30)3

= 24/(1 + 1)3

= 24/23



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