argument for-3+4i

Are you asking for the answer?....

3+4i

3+4i = 5 cis 53.1°

so, modulus is 5, argument is 53.1° or .927 (in radians)

oops. I missed the "-". Surely you can fix that.

To find the argument of -3 + 4i, we need to use the formula for the argument of a complex number, which is given by:

arg(z) = atan2(Im(z), Re(z))

Here, -3 is the real part (Re) of the complex number, and 4i is the imaginary part (Im) of the complex number.

Now, let's calculate the argument of -3 + 4i:

Re(-3 + 4i) = -3
Im(-3 + 4i) = 4

Applying the formula:

arg(-3 + 4i) = atan2(4, -3)

Now, we can use a calculator or a math software to find the arctangent of 4/(-3):

arg(-3 + 4i) ≈ 0.9273 radians or ≈ 53.13 degrees

Therefore, the argument of -3 + 4i is approximately 0.9273 radians or 53.13 degrees.