1.

यद‌ि `a+b=12,ab=22`, है तो `(a^(2)+b^(2))` ‌ किसके बराबर है?A. 188B. 144C. 34D. 100

Answer» Correct Answer - D
`a+b=12`…………i
`ab=22`……..ii
squaring both sids of equation ………..i
`implies a^(2)+b^(2)+2ab=144`
`a^(2)+b^(2)+2xx2=144`
`a^(2)+b^(2)=144-44=100`


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