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सिद्ध कीजिए की सरल रेखाएं 2x+ 5y -1 =0,3...

सिद्ध कीजिए की सरल रेखाएं 2x+ 5y -1 =0,3x-2y +8=0 तथा 7x+ 3y +11=0 संगामी है| | 11 | सरल रेखाए...

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