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ICSE Class 9 Answered

a-b=0.9 and ab=0.36 find the value of a+b Error converting from MathML to accessible text.-Error converting from MathML to accessible text.  
Asked by Mariasiddiqui786 | 19 Apr, 2019, 05:46: PM
answered-by-expert Expert Answer
a minus b equals 0.9 space left parenthesis a plus b right parenthesis squared equals left parenthesis a minus b right parenthesis squared plus 4 a b equals left parenthesis 0.9 right parenthesis squared plus 4 left parenthesis 0.36 right parenthesis equals 0.81 plus 1.44 equals 2.25 rightwards double arrow a plus b equals 1.5 N o w comma space a squared minus b squared equals left parenthesis a minus b right parenthesis left parenthesis a plus b right parenthesis equals left parenthesis 0.9 right parenthesis left parenthesis 1.5 right parenthesis equals 1.35
Answered by Renu Varma | 19 Apr, 2019, 06:48: PM

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