**Question:**Can someone please help me with this problem...

the absolute value of 3 plus 4i.

well how I'd do it is just simply change the 4i into the square root of negative 1

so it'd be |3+4(negative square root of 1)|

and just work from there

i is the imaginary number equal to the square root of -1

so i suppose you could write

|3+4*sqrt(-1)|

|3+sqrt(16*-1)|

|3+sqrt(-16)|

The "absolute value" (vertical bars) is akin to length. |-2| = |2| = 2 = distance from zero.

Consider the complex numbers as points on a plane, whereas the natural numbers are points on a line.

The question is asking how far away from the point 0+0i is the point 3+4i. Big hint: think right-angled triangle.

(NB: You asked for help, not the answer!)

hiii..its simple..

a complex no. z=3+4i

mod of z is l3+4il

la+ibl=square root of a^2+b^2(square of a +square of b)

n da ans shud b "5"

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