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A swimmer wishes to reach directly oppos...

A swimmer wishes to reach directly opposite point on the other bank of a river,flowing with velocity `4sqrt(2)m/s`.The swimmer can swim with `8m/s` in still water.The angle with the flow direction he should swim to reach the directly opposite point is (A)`45^(0)` (B)`90^(0)` (C)`135^(0)` (D)`150^(0)`

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