4-1.Complex numbers
normal

यदि ${z_1}$ तथा ${z_2}$ दो सम्मिश्र संख्यायें हों, तो $|{z_1} + {z_2}|$                    

A

$ \le \,|{z_1}| + |{z_2}|$

B

$ \le \,|{z_1}| - |{z_2}|$

C

$ < \,|{z_1}| + |{z_2}|$

D

$ > \,|{z_1}| + |{z_2}|$

Solution

(a) $|{z_1} + {z_2}|\, \le \,|{z_1}| + |{z_2}|$

Standard 11
Mathematics

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