+1678 +1678 +1678 +1678 +4 The sequence 9, 18, 27, 36, 45, 54,.. consists of successive multiples of 9. This sequence is then altered by multiplying every other term by (-1), starting with the first term, to produce the new sequence- 9, 18, -27, 36, 45, 54.... If the sum of the first
read more .. +1427 +1427 +1427 +5 Nov 29, 2023

+4 +1427 +1427 +1427 +180 +743 +743 +743 +743 +743 +743 +743 Nov 28, 2023

+817 +817 +4