Question 10
Evaluate the following expression.
$$1+\frac1{1+2}+\frac1{1+2+3}+\ldots+\frac1{1+2+\ldots+2019}$$
$$1+\frac1{1+2}+\frac1{1+2+3}+\ldots+\frac1{1+2+\ldots+2019}$$
AMC8 2027 - Self-practice Set 4 Question 10
AMC8 · AMC8 2027 - Self-practice Set 4