Question

If P = Q then which of the following is NOT correct
(a) P =
(b) PI=IQI
(c) PQ=QP
(d)P+Q=P^+Q^​

Answer 1

Answer:

P+Q=P^+Q^​

Explanation:

as magnitude of P^,Q^ are 1 but magnitude of vector p and q are not 1.