InterviewSolution
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InterviewSolution
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दो समीकरण `4x-y=2` और `2x-8y+4=0` के कितने हल हो सकते है?A. zeroB. oneC. twoD. infinitely many |
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Answer» Correct Answer - B `4x-y=2` `2x-8y+4=0` `a_(1)x+b_(1)y+c_(1)=0` `a_(2)x+b_(2)y+c_(2)=0` where `x` and `y` are variable. i `(a_(1))/(a_(2))!=(b_(1))/(b_(2))` then there will be unique solution. ltbr ii. `(a_(1))/(a_(2))=(b_(1))/(b_(2))=(c_(1))/(c_(2))`, then infinite solution iii `(a_(1))/(a_(2))=(b_(1))/(b_(2))!=(c_(1))/(c_(2))` then no solution `:. 4/2!=(-1)/(-8)` So the equations have only one solution. |
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