Question

Observe the following pattern
2x3 x4
(1x2)+(2 x 3) =
3
(1x2)+(2 3) + (3 x 4) =
3x4x5
3
4x5x6
(1x2)+(2x3)+(3 x 4)+(45)
3
and find the value of
(1x2)+(
23) + (3 x 4)+(4x5)+(
56)​

Answer 1

Answer:

(1 x 2) + (2 x 3) + (3 x 4) + (4 x 5) + (5 x 6) = 5×6×7/3 = 70