If the centre of a circle is \( (2 a, a-7) \), then find the values of \( a \), if the circle pa... VIDEO
If the centre of a circle is \( (2 a, a-7) \), then find the values of \( a \), if the circle passes through the point \( (11,-9) \) and has diameter \( 10 \sqrt{2} \) units.
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