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When was algebra invented?
We generally credit Diophantus of Alexandria as laying the groundwork for algebra in the second or third centuries AD. We can't be certain because records from that time are a challenge to find. Use the link to the related question to read a bit on the history of algebra. You'll find that link below.
What is the one third of 11.25?
3.75 - without using a calculator !
How do you write a program in C plus plus plus plus How do you write a program in C to swap two variables without using the third oneo swap two variables without using the third one?
To swap two variables without using a third variable, use exclusive or manipulation... a ^= b; b ^= a; a ^= b;
How do you know if a equation is true?
For elementary algebra equations, merely simplifying both sides and seeing if they match might work. For advanced algebra and trig, try transforming one side to the other, or both to a different third thing. If you are successful with either thing, it is true. If you reached the end of your figuring and got something that isn't always true (e.g. x2 = x or y = 5), then it's false.
What does faciunt mean?
Faciunt is the present indicative third-person plural of the verb facere, "to do; to make". It means "[they] do, make, are doing, are making".
