- #1
Layzie_Bone
- 5
- 0
i went into physics class the other day and saw on the board
prove a = 2a
a = b
a^2 = ab
a^2 - b^2 = ab - b^2
(a+b)(a-b) = b(a-b)
a+b=b
hence a+a = a
2a=a
it makes scence to me, but wen i showed my friend sometime latr
he told me it couldn't be
but he couldn't explain it.
could somone tell me why 2a = a
from the prove provided
thanx heaps
prove a = 2a
a = b
a^2 = ab
a^2 - b^2 = ab - b^2
(a+b)(a-b) = b(a-b)
a+b=b
hence a+a = a
2a=a
it makes scence to me, but wen i showed my friend sometime latr
he told me it couldn't be
but he couldn't explain it.
could somone tell me why 2a = a
from the prove provided
thanx heaps