### There are 4 results

Broad Topics >

Calculus > Infinite series

##### Age 11 to 14 Challenge Level:

How much of the square is coloured blue? How will the pattern continue?

##### Age 16 to 18 Challenge Level:

Is it true that a large integer m can be taken such that: 1 + 1/2 +
1/3 + ... +1/m > 100 ?

##### Age 16 to 18 Challenge Level:

A circle is inscribed in an equilateral triangle. Smaller circles
touch it and the sides of the triangle, the process continuing
indefinitely. What is the sum of the areas of all the circles?

##### Age 16 to 18 Challenge Level:

Generalise the sum of a GP by using derivatives to make the
coefficients into powers of the natural numbers.