How is the following possible. I realise I may be being very thick about this but I cant see it 4/√2 = 2x2/√2 = 2x√2 x √2/√2 = 2√2 What am I missing
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Originally Posted by planetdomi How is the following possible. I realise I may be being very thick about this but I cant see it 4/√2 = 2x2/√2 = 2x√2 x √2/√2 = 2√2 What am I missing You're multiplying your equation by $\displaystyle \dfrac{\sqrt2}{\sqrt2} = 1$ so nothing is changing
Originally Posted by planetdomi How is the following possible. I realise I may be being very thick about this but I cant see it 4/√2 = 2x2/√2 = 2x√2 x √2/√2 = 2√2 What am I missing look at it from this point of view ... $\displaystyle \frac{4}{\sqrt{2}} \cdot \frac{\sqrt{2}}{\sqrt{2}} = \frac{4 \cdot \sqrt{2}}{\sqrt{2} \cdot \sqrt{2}} = \frac{4\sqrt{2}}{2} = \frac{2 \cdot 2\sqrt{2}}{2} = 2\sqrt{2}$
Thankyou so much
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