Ah mathematics, the bane of my high school years... However recently I've come to enjoy the mental exercise. Enjoy as well.
What about 2^2^0? The video implies exponentiation is also left associative. It's not. Unlike division/multiplication it's actually right associative. That means most scientific calculators or programming languages evaluate 2^2^0 to 2 instead of 1. It'd be interesting to see the responses you'd get on Facebook from this one.
Interesting. I believe going from the historical way to the new way was driven mainly by mechanical and electronic means of calculating. For instance, after doing a lot of math by hand, I would have figured it the historic way but Excel figures it the newer way.
9 or 1 Moral of the story...use parentheses 6/2(1+2) = ambiguity 6/(2(1+2)) = 1 (6/2)(1+2) = 9 This is especially true if you are a programmer. Different languages interpret 6/2(1+2) differently. Some will even give an error until the "*" used eg 6/2*(1+2); (6/2) * (1+2)
The rules don't require the parentheses (although, I agree the parentheses make it clearer). 6÷2(1+2) is not ambiguity. You do PEMDAS, and work left to right. First you do the parentheses: 6÷2(3) Then you work left to right 3(3)=9
I'm alive today and the answer is 1. The problem is correctly written as 6 ______ 2*(1+2) If it is to be solved using another method then the parentheses are required as in (6/2)*(1+2).
P;E; {M&D left to right}; {A&S left to right} PEMDAS implies Multiplication precedes Division We could always askamathematician... http://www.askamathematician.com/20...-deal-with-this-orders-of-operation-business/
I see now 6/2 to the power of 1 + 2 giving you 9. didn't see a squared sign anywhere in the equation. It's 9 if 1 + 2 is squared. or 3 if 1 + 2 is an equaliser.
Parentheses first, Multiplication and Division Second Addition and Subtraction third Operations on the same level go from left to right. 6/2(1+2) 6/2*3 3*3 9
Well.................................. I got that it was 3 squared, but I didn't get how. It turns out to be a lot more 'tedious' for use of a less vulgar word than I thought; with the correct answer to get 3 squared. make (1 + 2) into x 3 (somehow) and your and then get 3 from 6/2 to make it 3 x 3 which... is 3 squared, which is 9. When I was right, I wasn't.