what is 1/f = 1/v - 1/u ; solve for u
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Answered by
2
1/f = 1/v - 1/u
⇒ 1/f +1/u = 1/v
⇒ 1/u = 1/v - 1/f
⇒ 1/u = (f - v) / v.f
⇒ v.f / (f - v) = u or u = v.f / (f - v)
⇒ 1/f +1/u = 1/v
⇒ 1/u = 1/v - 1/f
⇒ 1/u = (f - v) / v.f
⇒ v.f / (f - v) = u or u = v.f / (f - v)
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Answered by
1
1/f=1/v-1/u
-1/u=1/f-1/v
1/u=1/v-1/f
1/u=f-v/v.f
u=v.f/f-v
-1/u=1/f-1/v
1/u=1/v-1/f
1/u=f-v/v.f
u=v.f/f-v
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