1.

following dea5 decimal numbersExpress Cach of thein form2i) 0.5

Answer»

0.555..... =x. (equation 1)hear periodicity is 1 so multiply on both sides by 1010x=0.555...×1010x=5.5555 (equation 2)substitute equation 1 and 2 10x=5.55 (-) x=0.555

= 9x=5 = x=5/9hence0.5555....=5/9



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