Question

1) IF P BAR+Q BAR = R BAR AND P BAR - Q BAR = S BAR , THEN R ^2 + S^2 = ________

1)P^2+Q^2 2)2(P^2+Q^2) 3) 2(P^2+Q^2) 4) 4PQ

Answer 1

Answer:

IF P BAR+Q BAR = R BAR AND P BAR - Q BAR = S BAR , THEN R ^2 + S^2 = 2 (p square +q square

P^2+Q^2 2)2(P^2+Q^2) 3) 2(P^2+Q^2) 4) 4PQ

2p

3

−q

3

+pq(p−2q