<p>Diketahui dua lingkaran <img align="middle" alt="x squared plus y squared equals 2" class="Wirisformula" data-mathml="«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«msup»«mi»x«/mi»«mn»2«/mn»«/msup»«mo»+«/mo»«msup»«mi»y«/mi»«mn»2«/mn»«/msup»«mo»=«/mo»«mn»2«/mn»«/math»" height="19" role="math" src="data:image/png;base64,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" style="max-width: none; vertical-align: -3px;" width="80" />&nbsp;dan <img align="middle" alt="x squared plus y squared equals 4" class="Wirisformula" data-mathml="«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«msup»«mi»x«/mi»«mn»2«/mn»«/msup»«mo»+«/mo»«msup»«mi»y«/mi»«mn»2«/mn»«/msup»«mo»=«/mo»«mn»4«/mn»«/math»" height="19" role="math" src="data:image/png;base64,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" style="max-width: none; vertical-align: -3px;" width="80" />. Garis <img align="middle" alt="l subscript 1" class="Wirisformula" data-mathml="«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«msub»«mi»l«/mi»«mn»1«/mn»«/msub»«/math»" height="17" role="math" src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAA4AAAARCAYAAADtyJ2fAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAABGJhU0UAAAAMyZLetQAAAGxJREFUeNpjYMAE34CYiYFEoALElxjIAAFAvJwcjfVAXE6OxlVQW0kGt4BYmlRNTNAQJRmYA/F+cjRGAvF8LOJqQFwLxBdwaZwExGlYxBdDxf/j0rgOiL3wuAinxndAzEGORkJgOGv8jwUzAAAhtxoHp5ZOcwAAAGB0RVh0TWF0aE1MADxtYXRoIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8xOTk4L01hdGgvTWF0aE1MIj48bXN1Yj48bWk+bDwvbWk+PG1uPjE8L21uPjwvbXN1Yj48L21hdGg+HLyDYwAAAABJRU5ErkJggg==" style="max-width: none; vertical-align: -5px;" width="14" /> menyinggung lingkaran pertama dititik (1, -1). Garis <img align="middle" alt="l subscript 2" class="Wirisformula" data-mathml="«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«msub»«mi»l«/mi»«mn»2«/mn»«/msub»«/math»" height="17" role="math" src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAA4AAAARCAYAAADtyJ2fAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAABGJhU0UAAAAMyZLetQAAAItJREFUeNpjYMAE34CYiYFEoALElxjIAAFAvJwcjfVAXE6OxlVQW0kGt4BYmlRNTNAQJRmYA/F+cjRGAvF8NLH/UPwLiI9CowsDTALiNDzeyALic9gk1wGxFwFX/cAm+A6IOfBosgfig6T6XxLqRyVSNKkB8RaoZpJs2gbEfKQ6EaRJg5y4/Y8FgwEAS8QbU3Z8kxQAAABgdEVYdE1hdGhNTAA8bWF0aCB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMTk5OC9NYXRoL01hdGhNTCI+PG1zdWI+PG1pPmw8L21pPjxtbj4yPC9tbj48L21zdWI+PC9tYXRoPrMVzqkAAAAASUVORK5CYII=" style="max-width: none; vertical-align: -5px;" width="14" /> menyinggung lingkaran kedua dan tegak lurus dengan garis <img align="middle" alt="undefined" class="Wirisformula" data-mathml="«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«msub»«mi»l«/mi»«mn»1«/mn»«/msub»«/math»" height="17" role="math" src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAA4AAAARCAYAAADtyJ2fAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAABGJhU0UAAAAMyZLetQAAAGxJREFUeNpjYMAE34CYiYFEoALElxjIAAFAvJwcjfVAXE6OxlVQW0kGt4BYmlRNTNAQJRmYA/F+cjRGAvF8LOJqQFwLxBdwaZwExGlYxBdDxf/j0rgOiL3wuAinxndAzEGORkJgOGv8jwUzAAAhtxoHp5ZOcwAAAGB0RVh0TWF0aE1MADxtYXRoIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8xOTk4L01hdGgvTWF0aE1MIj48bXN1Yj48bWk+bDwvbWk+PG1uPjE8L21uPjwvbXN1Yj48L21hdGg+HLyDYwAAAABJRU5ErkJggg==" style="max-width: none; vertical-align: -5px;" width="14" />. Titik potong garis <img align="middle" alt="undefined" class="Wirisformula" data-mathml="«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«msub»«mi»l«/mi»«mn»1«/mn»«/msub»«/math»" height="17" role="math" src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAA4AAAARCAYAAADtyJ2fAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAABGJhU0UAAAAMyZLetQAAAGxJREFUeNpjYMAE34CYiYFEoALElxjIAAFAvJwcjfVAXE6OxlVQW0kGt4BYmlRNTNAQJRmYA/F+cjRGAvF8LOJqQFwLxBdwaZwExGlYxBdDxf/j0rgOiL3wuAinxndAzEGORkJgOGv8jwUzAAAhtxoHp5ZOcwAAAGB0RVh0TWF0aE1MADxtYXRoIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8xOTk4L01hdGgvTWF0aE1MIj48bXN1Yj48bWk+bDwvbWk+PG1uPjE8L21uPjwvbXN1Yj48L21hdGg+HLyDYwAAAABJRU5ErkJggg==" style="max-width: none; vertical-align: -5px;" width="14" /> dan <img align="middle" alt="undefined" class="Wirisformula" data-mathml="«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«msub»«mi»l«/mi»«mn»2«/mn»«/msub»«/math»" height="17" role="math" src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAA4AAAARCAYAAADtyJ2fAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAABGJhU0UAAAAMyZLetQAAAItJREFUeNpjYMAE34CYiYFEoALElxjIAAFAvJwcjfVAXE6OxlVQW0kGt4BYmlRNTNAQJRmYA/F+cjRGAvF8NLH/UPwLiI9CowsDTALiNDzeyALic9gk1wGxFwFX/cAm+A6IOfBosgfig6T6XxLqRyVSNKkB8RaoZpJs2gbEfKQ6EaRJg5y4/Y8FgwEAS8QbU3Z8kxQAAABgdEVYdE1hdGhNTAA8bWF0aCB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMTk5OC9NYXRoL01hdGhNTCI+PG1zdWI+PG1pPmw8L21pPjxtbj4yPC9tbj48L21zdWI+PC9tYXRoPrMVzqkAAAAASUVORK5CYII=" style="max-width: none; vertical-align: -5px;" width="14" /> adalah ....</p>


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