If z 2 z 1 is purely imaginary then z 1 − z 2 z 1 + z 2 is equal to

E = ( z 1 / z 2 ) − 1 1 + ( z 1 / z 2 ) = x i − 1 1 + x i = 1 ]

Mathematics - Complex Number Question with Solution | TestHub

MathematicsComplex NumberEasy3 minQB

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If $\frac{z _{1}}{z _{2}}$ is purely imaginary then $\frac{z _{1} + z _{2}}{z _{1} - z _{2}}$ is equal to

Answer:

100.00

Solution:

$E = \frac{1 + ( z _{1} / z _{2} )}{( z _{1} / z _{2} ) - 1} = \frac{1 + x i}{x i - 1} = 1]$

Stream:JEESubject:MathematicsTopic:Complex Number

⏱ 3mℹ️ Source: QB

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