Question

If P+Q = 0, then which of the following is necessarily true?
(1) P =0
(2 p =-Q
(3) Q =0
(4)P=Q ​

Answer 1

Answer:

P= -Q

Explanation:

See,

If;

1) P=0

keeping this in the eqn. will gige p+Q=0

which means P and Q are both zero but this is not posible as, first option does not have a conjugate of Q.

3) Similarly Q= cannog br equal to 0 as there is same situation.

and now,

if P=Q then,

it means P=Q=0 which is not an approporaite ans.

so,

here we concludr among the options that

P=-Q.

ans.

Answer 2

2) is the correct option i.e P=-Q