Question

question in picture..expect a good answer pls..

Answer 1

Answer:10

Explanation:

|vecP-vecQ|=√P²+Q²-2PQcosα

                 =√20²+10²-2(20)(10)

                 =√400+100-400

                 =√100

                 =10

Direction is vecP-vecQ/|vecP-vecQ| = vecP-vecQ/10

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