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EXAMPLE 3 Prove that la a+b a+b+c. ...
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EXAMPLE 3 Prove that la a+b a+b+c. 2a 3a + 2b 4a + 3b + 2c = a?. 3a 6a + 3b 10a + 6b+ 3c
11th - 12th Class
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SOLUTION Let the given determinant be ( Delta ). Then, [ =a cdotleft(a^{2}-0right)=a^{3} ]
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