Sweden | A Nice Algebra Problem | Math Olympiad👇 

Great teaching solution

Nice algebra problem

Perfect teaching solution

well explained

Good teaching method

Very well explained

too good explaination👍

I see 9 comments complementing this solution, however this is not the correct or complete solution, since it is in terms of log(i). Now log(i) is any integer multiple of i. pi. The correct solution is (2n pi - i log 5) / (pi - i log 5) for all integers n.

Perfect theorem

Maam it very nice

( - 5 ) ^ ( x - 1) = - 1 x = 1 + log ( -1)/ log ( -5) = 1 + 1 /.( 1 + log (5) / log (-1)) = 1 + 1/( 1 + log ( 5) / (i π))

● (-5)x=5 Super theorem! Well explained