Apa kebalikan dari f (x) = -ln (x-2)?

Menjawab:

#color (white) xxf ^ -1 (x) = e ^ -x + 2 #

Penjelasan:

#color (white) xxf (x) = - ln (x-2) #

# => y = -ln (x-2) #

# => ln (x-2) = - y #

# => x-2 = e ^ -y #

# => x-2color (merah) (+ 2) = e ^ -color (merah) (+ 2) #

# => f ^ -1 (x) = e ^ -x + 2 #