In a trapezium, the vector BC=lamdaAD. W...

In a trapezium, the vector `BC=lamdaAD`. We will then find that `p=AC+BD` is collinear with `AD`. I `p=mu` AD, then

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In a trapezium ABCD the vector B vec C = lambda vec(AD). If vec p = A vec C + vec(BD) is coillinear with vec(AD) such that vec p = mu vec (AD), then

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