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## Main Question or Discussion Point

So I got to the part of my math/engineering textbook on vectors and scalars, and I've got to calculate phase angles and voltage. I see this equation, and I've tried doing it different ways but I don't get correct answers.

tanθ=X

Angle

I thought I was supposed to square each value first,

then subtract C from L,

then divide by R

then get the square root of the result,

then push the inverse button + Tangent on the calculator to change the result into an angle in degrees.

I didn't do well with vector spaces in school and have trouble with them now.

Also, am I supposed to do any RMS stuff like root 2 over 2, since its AC, and implied? Or am I overthinking it?

tanθ=X

_{L}−X_{C}/ X_{R}Angle

*θ*represents the**phase angle**between the current and the voltage.I thought I was supposed to square each value first,

then subtract C from L,

then divide by R

then get the square root of the result,

then push the inverse button + Tangent on the calculator to change the result into an angle in degrees.

I didn't do well with vector spaces in school and have trouble with them now.

Also, am I supposed to do any RMS stuff like root 2 over 2, since its AC, and implied? Or am I overthinking it?