Why does a number powered to 0 = 1?

1.34K viewsMathematicsOther

Anything multiplied by 0 is 0 right so why does x number raised to the power of 0 = 1? isnt it x^0 = x*0 (im turning grade 10 and i asked my teacher about this he told me its because its just what he was taught 💀)

In: Mathematics

42 Answers

Anonymous 0 Comments

You put 1000 bucks in a bank with an annual interest rate of 5%.

How much do you have after *n* years?

After 1 year, it’s 1000*1,05=1050.

After two years, it’s 1000*1,05*1,05=1102,5.

And so on.

After *n* years it’s 1000*1,05*^(n)*. So the 1,05*^(n)* expresses how much your capital has multiplied after *n* years.

What’s 1,05^(0) then? It’s how much your capital multiplied after 0 years, i.e. you put it in and immediately withdrawn. Obviously, it’s the same amount, so it’s multiplied by 1. That’s why 1,05^(0)=1.

It works the same way regarldess of what the annual interest rate is, so that’s why x^(0)=1 for any x.

You are viewing 1 out of 42 answers, click here to view all answers.