Dik= f(x)=2 seper 3(2x+7). Jika f -1(p)=10 nilai p=....
Matematika
Triaraisyaa2550
Pertanyaan
Dik= f(x)=2 seper 3(2x+7). Jika f -1(p)=10 nilai p=....
1 Jawaban
-
1. Jawaban andrerachman
f(x) = 2/3(2x+7)
f -1(p) = 10
p = ?
f -1(p) = 10
3(2p+7)/2 = 10
3(2p+7) = 10 x 2
3(2p+7) = 20
6p + 21 = 20
6p = 20 -21
6p = -1
p = -1/6