If the system of linear equations: x + y + z = 6, x + 2y + 5... — JEE PYQs | Mockzy | Mockzy

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If the system of linear equations:

x + y + z = 6,

x + 2y + 5z = 10,

2x + 3y + $λ z = μ$

, has infinitely many solutions, then the value of $λ + μ$ equals.

A

12

B

16

C

22

D

28

The number of values of z ∈ ℂ, satisfying the equations |z-(4+8i)| = √10 and |z-

Let and then equals:

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