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Question

Find the real values of x and y for which the following equation is satisfied.
(i) (2+3i)x2(32i)y=2x3y+5i
(ii) 4x2+3xy+(2xy3x2)i=4y2(x22)+(3xy2y2)i

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Solution

Given,

(i)

(2+3i)x2(32i)y=2x3y+5i

(2x23y)+(3x2+2y)i=2x3y+5i

[2x23y=2x3y3x2+2y=5]

solving the above 2 equations, we get,

[2x23y=2x3y3x2+2y=5](x=0,y=52x=1,y=1)

(ii)

4x2+3xy+(2xy3x2)i=4y2x22+(3xy2y2)i

8x2+6xy+2i(2xy3x2)=8y2x2+2i(3xy2y2)

[8x2+6xy=8y2x24xy6x2=6xy4y2]

solving the above 2 quadratic equations, we get,

[8x2+6xy=8y2x24xy6x2=6xy4y2](y=0,x=0)

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