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The points P,Q and R have position vectors -2i-3j, 2i+7j and 4i+dj respectively. If P,Q and R are collinear,determine the value of d?

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  • The points P,Q and R have position vectors -2i-3j, 2i+7j and 4i+dj respectively. If P,Q and R are collinear,determine the value of d?


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