Tolong yang tau yaa plis hehehehehehe

6][
P = -2
PR = ?
Penyelesaian:
P = -100/PR
-2 = -100/PR
2 = 100/PR
PR = 100/2
PR = 50 cm

7][
M = Sn/f + 1


6 = 25/f + 1
6 -1 = 25/f
5 = 25/f
f = 25/5
f = 5 cm

P = 100/f
P = 100/5
P = 20 D