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Properties of Conjugate of a Complex Number

If z 1 & z ...

Question

If $z_{1} & z_{2}$ are two non-zero complex numbers such that $| z_{1} + z_{2} | = | z_{1} | + | z_{2} |$ , then $A r g z_{1} - A r g z_{2}$ is equal to:

A

- π

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B

- π / 2

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C

0

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D

π / 2

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Solution

The correct option is C $0$

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Similar questions

z_{1}

z_{2}

are two non-zero complex numbers such that

| z_{1} | = | z_{2} |

a r g z_{1} + a r g z_{2} = π

z_{2}

z_{1}

z_{2}

are two complex numbers such that

| z_{1} | = | z_{2} |

a r g z_{1} + a r g z_{2} = π

z_{1}

z_{2}

Q. If z₁ and z₂ are two non-zero complex such that

∣ z_{1} + z_{2} ∣=∣ z_{1} ∣ + ∣ z_{2} ∣,

(z_{1}) -

(z_{2})

z_{1}

z_{2}

are two non-zero complex numbers such that

| z_{1} + z_{2} | = | z_{1} | + | z_{2} |

a r g z_{1} - a r g z_{2}

z_{1}, z_{2}

are complex numbers then the correct match List- I to List II is:

List - I	List - II
A) arg z_1z_2	1) $a r g z_{1} - a r g z_{2}$
B) $a r g z_{1}_{2}$	2) $a r g z_{1} - a r g z_{2} = \frac{π}{2}$
C) $\| z_{1} + z_{2} \| = \| z_{1} - z_{2} \|$	3) $a r g z_{1} = a r g z_{2}$
D) $\| z_{1} + z_{2} \|^{2}$	4) $a r g z_{1} + a r g z_{2}$
E) $\| z_{1} + z_{2} \| = \| z_{1} \| + \| z_{2} \|$	5) $r_{1}^{2} + r_{2}^{2} + 2 r_{1} r_{2} c o s (θ_{1} - θ_{2})$

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