Binomial Theorem

Question
CBSEENMA11015082

Find the centre and radii of the following circle:
straight x squared plus straight y squared equals 49


Solution

The given equation of the circle is: straight x squared plus straight y squared equals 49
or           left parenthesis straight x minus 0 right parenthesis squared plus left parenthesis straight y minus 0 right parenthesis squared equals 49
Comparing it with the standard equation of circle: left parenthesis straight x minus straight h right parenthesis squared plus left parenthesis straight y minus straight k right parenthesis squared equals straight r squared comma we have
                                        straight h equals 0 comma space straight k equals 0 comma space straight r squared equals 49 space rightwards double arrow space straight r space equals space 7
Hence, the centre of circle is <pre>uncaught exception: <b>mkdir(): Permission denied (errno: 2) in /home/config_admin/public/felixventures.in/public/application/css/plugins/tiny_mce_wiris/integration/lib/com/wiris/util/sys/Store.class.php at line #56mkdir(): Permission denied</b><br /><br />in file: /home/config_admin/public/felixventures.in/public/application/css/plugins/tiny_mce_wiris/integration/lib/com/wiris/util/sys/Store.class.php line 56<br />#0 [internal function]: _hx_error_handler(2, 'mkdir(): Permis...', '/home/config_ad...', 56, Array)
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#6 {main}</pre> and the radius is 7.

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