Question

1*2*3+2*3*4+3*4*5+......+8*9*10​

Answer 1

Answer:

1/2 is the same as saying 1÷2 and 2/3 is the same as 2÷3 etc etc

I am going to re-write this problem using the × and ÷ signs:

(1÷2) × (2÷3) × (3÷4) × (4÷5) × (5÷6) × (6÷7) × (7÷8) × (8÷9) × (9÷10)

Which is the same as:

1 ÷2 ×2 ÷3 ×3 ÷4 ×4 ÷5 ×5 ÷6 ×6 ÷7 ×7÷8 ×8 ÷9 ×9 ÷10

Ie 1 ÷2 ×2 then ÷3 ×3 then ÷4 ×4 then ÷5 ×5 then ÷6 ×6 then ÷7 ×7 then÷8 ×8 then ÷9 ×9 AND FINALLY just ÷10

Step-by-step explanation:

Hope it will help you