Question: 3. Given the triangle ABC with vertices A(a , a,, a, ), B(b , b,, b ), C(c ,c,, c). P and Q are the

3. Given the triangle ABC with vertices A(a , a,, a,

3. Given the triangle ABC with vertices A(a , a,, a, ), B(b , b,, b ), C(c ,c,, c). P and Q are the midpoints of sides AB and AC respectively. Use algebraic vectors to prove PQ = =BC (Note: you will need to prove the vectors are collinear and |PQ| = _|BC()

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