1.

A load is supported using three wires of same cross section area as shown. Then fox

Answer»

<P>`{:(P,Q,R,S),(2,3,1,4):}`
`{:(P,Q,R,S),(1,4,2,3):}`
`{:(P,Q,R,S),(3,2,4,1):}`
`{:(P,Q,R,S),(2,2,3,4):}`

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