Mahima posted an Question
September 18, 2020 • 11:44 am 30 points
  • IIT JAM
  • Mathematics (MA)

F a, d, c are roots of the equation x + dx + q = 0 (p # 0, q 0), the value ou a b c bc a ca b is (b) (a) p (d) none of these (c) p2-2q stric matrix of o

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  • Anuj s. best-answer

    solution

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    there is another easy method. Do you know sir?

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    i know another method but it to long and time taking , by taking equations and roots , but its not true for all time

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    it is easiest method from my side

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    ex

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    there are many formulas for special conditions in book as well as internet , it is difficult to remember every formula , this solution is from the basic formula

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    sir can you explain this method

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    in this coloum 1 is added by column 2&3 , and we get a+b+c , and according to question a+b+c is zero then we get 0 or column 1 , by solving determinant , we get the answer, ans answer not match with option,so d is correct i.e none of these

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    &12q also shows that option d non of these is correct

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