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junior college 2 | H3 Maths
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Write down the centre and radius of the following circle.
Date Posted: 6 years ago
Views: 421
Your last line should be
(x - ½a)² + (y -½b)² = ¼a² - ½ab + ¼b²
From there,
(x - ½a)² + (y -½b)² = (½a - ½b)²
(x - ½a)² + (y -½b)² = ( (a - b) / 2 )²
Radius and coordinates of centre is quite intuitive now.
(x - ½a)² + (y -½b)² = ¼a² - ½ab + ¼b²
From there,
(x - ½a)² + (y -½b)² = (½a - ½b)²
(x - ½a)² + (y -½b)² = ( (a - b) / 2 )²
Radius and coordinates of centre is quite intuitive now.
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