You add 1 plus another one and you get 2
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∙ 13y ago1 + 2 + 4 + ... + 2n = 2n+1 - 1
Anything multiplied by zero is zero - no matter how complex the sum !
no if 1 plus 1 equals 2 then 2 plus 2 equals 4.
-6
9
12.
Synthesis. 2 of something, plus 1 of something, plus 3 of something equals sum!! Maths
In any addition sum, such as 1 + 2 = 3, the components in the addition part of the sum are called the addends.
because the number are the same /example2 times 3 equals 6. 3 times 2 equals 6
(xn+2-1)/(x2-1)
a number equals 2
1 plus 1 equals one fact