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Equation of a Plane Passing through a Point and Parallel to the Two Given Vectors

A swimmer cro...

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A swimmer crosses a flowing stream of breadth b to and fro perpendicular to stream in time T1.The time taken to cover the same distance up and down the stream is T2. If T3 is the time the swimmer would take to swim a distance 2b in still water, then :- (1) T3=T1+T2 (2) T1^2=T2T3 (3) T2^2= T1T3 (4) T3^2= T1T2

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Equation of a Plane Passing through a Point and Parallel to the Two Given Vectors

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