628 B
628 B
id | title | challengeType | forumTopicId |
---|---|---|---|
5900f4571000cf542c50ff6a | Problem 235: An Arithmetic Geometric sequence | 5 | 301879 |
--description--
Given is the arithmetic-geometric sequence u(k) = (900-3k)rk-1.
Let s(n) = Σk=1...nu(k).
Find the value of r for which s(5000) = -600,000,000,000.
Give your answer rounded to 12 places behind the decimal point.
--hints--
euler235()
should return 1.002322108633.
assert.strictEqual(euler235(), 1.002322108633);
--seed--
--seed-contents--
function euler235() {
return true;
}
euler235();
--solutions--
// solution required