In trapezium PQRS, given that `QR|| PS and 2QR=PS. If ``vec(PQ)=veca,vec(QR)=vecb and vec(RS)=vecc`,
Channel: Doubtnut
Date: 2020-04-12

In trapezium PQRS, given that `QR|| PS and 2QR=PS. If ``vec(PQ)=veca,vec(QR)=vecb and vec(RS)=vecc`, express `vecq` in terms  `vecb and vecc`