Q. 21 A4.7( 8 Votes )

# Find the real values of x and y for which:(1 – i) x + (1 + i) y = 1 – 3i

(1 – i) x + (1 + i) y = 1 – 3i

x – ix + y + iy = 1 – 3i

(x + y) – i(x – y) = 1 – 3i

Comparing the real parts, we get

x + y = 1 …(i)

Comparing the imaginary parts, we get

x – y = -3 …(ii)

Solving eq. (i) and (ii) to find the value of x and y

Adding eq. (i) and (ii), we get

x + y + x – y = 1 + (-3)

2x = 1 – 3

2x = -2

x = -1

Putting the value of x = -1 in eq. (i), we get

(-1) + y = 1

y = 1 + 1

y = 2

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