Presuming you mean an f# chord:
a 1
e 2
c 1
g 3
what is the relative minor of f sharp major
The key of Gmajor has 1 sharp which is F sharp.
Three sharps mean the piece is played in the key of A. If one sharp is in front of Middle C, you play C sharp. If two sharps are in front of Middle C, you play D. If three sharps are in front of Middle C, you play D sharp.
The key of G Major has one sharp: F#
f sharp
G major, D major, E major, B major, F sharp major, F sharp minor, A sharp major, etc.
F sharp.
what is the relative minor of f sharp major
The key of Gmajor has 1 sharp which is F sharp.
Three sharps mean the piece is played in the key of A. If one sharp is in front of Middle C, you play C sharp. If two sharps are in front of Middle C, you play D. If three sharps are in front of Middle C, you play D sharp.
The key of G Major has one sharp: F#
There are six sharps in F sharp major.
f sharp
The mediant of any major scale is the note that is a third above the tonic (root) of the scale. In the key of F sharp major, the tonic is F sharp, so the mediant would be A sharp.
That would be either A major or F# minor.
F# major. f sharp, c sharp, g sharp, d sharp, a sharp, e sharp
A major, or F# minor