Answer:
u = fv/(v - f)
Step-by-step explanation:
1/f = 1/u + 1/v
1/u = 1/f - 1/v = v/fv - f/fv = (v-f)/fv
1/u = (v-f)/fv
the answer is 80%
4/5 = 80%
Correct option is C)
given, y≥2x+1 and
y>
2
1
x−1
