Question

Let P and Q be two vectors of the same magnitude and form a rhombus whose diagonals are A and B .Nark the CORRECT statement (s):
A. P=1/2(A+B)
B. Q=1/2(A-B)
C.
$| a + b | = |a - b|$
D. A.B=0​

Answer 1

answer : all options are correct.

explanation : we know,

angle between diagonals of rhombus is 90°. means, diagonals of rhombus is perpendicular to each other.

so, A.B = 0 ....(1)

hence, option (D) is correct.

Let's check A and B are correct or not

|P| = |Q|

or, |1/2(A + B)| = |1/2(A - B)|

or, |A + B| = |A - B|

this is possible only when angle between A and B is 90°

so, P = 1/2(A + B) and Q = 1/2(A - B) are correct.

and also |A + B| = |A - B| is correct.

hence, all options are correct.

Answer 2

Answer:

hope it help jee aspirants ..........

Explanation:

thanks a lot angle 90⁰ so wow