It follows directly from the definition of what 1, 2, and "plus" are. 1 and 2 are simply symbols that are associated with a particular quantity. For example, 1 ampersand is: &. 2 ampersands are: &&. 3 ampersands are &&&.
Addition can be defined by taking two sets, combining them into one set, and counting the number of things in the set. So If we take a set of ampersands that has 1 ampersand (&) and another that has 1 ampersand (&), combine those sets of ampersands into a single set (&&) and count the number of ampersands in it, then we have proved that 1 + 1 = 2.
no if 1 plus 1 equals 2 then 2 plus 2 equals 4.
1 plus 44...... wow
1^2 + 1^2 + 1^2 + 1^2 + 1^2 + 1^2 = 1 + 1 + 1 + 1 + 1 + 1 = 5
One plus one is two. It can be expressed mathematically as 1+1 = 2.
It equals 7
1/2 + 1/2 + 1/2 + 1/2 = 2 2 is four halves.
2 9 1 plus 1 is 2.
1+1 or 1 plus 1 is equal to 2.
The answer to 6 divided by 2 parenthesis 1 plus 2 is nine. The problem is solved by first adding the numbers in the parenthesis (1 + 2 = 3). Next divide the number 6 by 2 (6/2 = 3) lastly multiply 3 by 3 which gives you 9.
It equals 6
The point (1, 13) lies on y = ax^2 + bx + 12 So the coordinates of the point satisfy the equation. 13 = a + b + 12 => a + b = 1 .. .. .. .. .. .. .. .. .. (1) The stationary point of the curve is reached when dy/dx = 0: that is 2ax + b = 0 at (1, 12) this gives 2a + b = 0 .. .. .. (2) Solving (1) and (2) gives a = -1, b = 2
5