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- A
- B
- C
- D

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Solution

Verified by Toppr

Hence, 0<u<∞

Reciprocating the terms,

0<1u<∞

Adding 1f to the inequality,

1f<1u+1f<∞

We know that 1v−1u=1f

Hence, 1u+1f=1v

The inequality becomes,

1f<1v<∞

Reciprocating the terms,

0<v<f

Hence image lies in region C.

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