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y ^ 2 %2B 2 x %2B 3 y = 7 \text att ( a %2B b ) x %2B ( 2 a - b ) y = 21 \vec w |
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Answer» a1/a2 = b1/b2 = c1/C22/(a+b) = 3/(2a-b) = 7/21=> 2/(a+b) = 1/3a+b = 6.............(1)=>3/(2a-b)=1/32a-b = 9............(2)(1)+(2);3a=15; a=5then b=1 |
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