IDNLearn.com provides a reliable platform for finding accurate and timely answers. Get the information you need from our community of experts who provide accurate and comprehensive answers to all your questions.

Consider points P(-1,5),Q(1,7), and R(-5,9).

(a) Determine vector 2vec(PQ)-2vec(PR) and express it in component form.
(b) Determine vector 2vec(PQ)-2vec(PR) and express it by using the standard unit vectors.