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find the real value of 3x+y-4i=5+(2x-3y)i

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find the real value of 3x+y-4i=5+(2x-3y)i

Posted by Tek Chand Sharma 3 years, 10 months ago

CBSE > Class 11 > Applied Maths

1 answers

Mandip Saikia 3 years, 10 months ago

(3x + y)+(-4)i=(5)+(2x-3y)i Comparing real and imaginary parts,we have •3x+y=5------{a} •2x-3y=-4-------{b} Now, {a}=> y=5-3x {b}=> 2x-3(5-3x)=-4 => 2x-15+9x=-4 => 11x=-4+15=11 => x=1 Therefore, y=5-3x=5-(3×1)=2. Solution, x=1,y=2.

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