well, thats what he did, otherwise it would be 1,9^10
1,9 * 10 = 90% + 90% + 90% + 90% + 90% + 90% + 90% + 90% + 90% + 90 %
1,9^10 = * 1,9 * 1,9 * 1,9…and so on
well, thats what he did, otherwise it would be 1,9^10
1,9 * 10 = 90% + 90% + 90% + 90% + 90% + 90% + 90% + 90% + 90% + 90 %
1,9^10 = * 1,9 * 1,9 * 1,9…and so on