Proof: Square Root Example 2
Let's prove the following theorem:
square root of ((3 / 4) ⋅ (s ⋅ s)) = (square root of 3) ⋅ (s / 2)
Proof:
# | Claim | Reason |
---|---|---|
1 | (3 / 4) ⋅ (s ⋅ s) = 3 ⋅ ((s ⋅ s) ⋅ (1 / 4)) | (3 / 4) ⋅ (s ⋅ s) = 3 ⋅ ((s ⋅ s) ⋅ (1 / 4)) |
2 | square root of ((3 / 4) ⋅ (s ⋅ s)) = square root of (3 ⋅ ((s ⋅ s) ⋅ (1 / 4))) | if (3 / 4) ⋅ (s ⋅ s) = 3 ⋅ ((s ⋅ s) ⋅ (1 / 4)), then square root of ((3 / 4) ⋅ (s ⋅ s)) = square root of (3 ⋅ ((s ⋅ s) ⋅ (1 / 4))) |
3 | square root of (3 ⋅ ((s ⋅ s) ⋅ (1 / 4))) = (square root of 3) ⋅ (square root of ((s ⋅ s) ⋅ (1 / 4))) | square root of (3 ⋅ ((s ⋅ s) ⋅ (1 / 4))) = (square root of 3) ⋅ (square root of ((s ⋅ s) ⋅ (1 / 4))) |
4 | square root of ((s ⋅ s) ⋅ (1 / 4)) = s / 2 | square root of ((s ⋅ s) ⋅ (1 / 4)) = s / 2 |
5 | (square root of 3) ⋅ (square root of ((s ⋅ s) ⋅ (1 / 4))) = (square root of 3) ⋅ (s / 2) | if square root of ((s ⋅ s) ⋅ (1 / 4)) = s / 2, then (square root of 3) ⋅ (square root of ((s ⋅ s) ⋅ (1 / 4))) = (square root of 3) ⋅ (s / 2) |
6 | square root of (3 ⋅ ((s ⋅ s) ⋅ (1 / 4))) = (square root of 3) ⋅ (s / 2) | if square root of (3 ⋅ ((s ⋅ s) ⋅ (1 / 4))) = (square root of 3) ⋅ (square root of ((s ⋅ s) ⋅ (1 / 4))) and (square root of 3) ⋅ (square root of ((s ⋅ s) ⋅ (1 / 4))) = (square root of 3) ⋅ (s / 2), then square root of (3 ⋅ ((s ⋅ s) ⋅ (1 / 4))) = (square root of 3) ⋅ (s / 2) |
7 | square root of ((3 / 4) ⋅ (s ⋅ s)) = (square root of 3) ⋅ (s / 2) | if square root of ((3 / 4) ⋅ (s ⋅ s)) = square root of (3 ⋅ ((s ⋅ s) ⋅ (1 / 4))) and square root of (3 ⋅ ((s ⋅ s) ⋅ (1 / 4))) = (square root of 3) ⋅ (s / 2), then square root of ((3 / 4) ⋅ (s ⋅ s)) = (square root of 3) ⋅ (s / 2) |
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