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Grade: 12th Pass

                        

P is the resultant of A and B. Q is resultant of A and (-B), the value of P² + Q² would be (1) 2B² (2) 2A² (3) 2(A²-B²) (4) 2(A²+B²)

2 years ago

Answers : (1)

Mahima Kanawat
1010 Points
							
Dear student 
P=A+B
Q=A-B
P2+Q= (A+B) 2+ (A-B) = A2+B2+2AB+A2+B2-2AB
=2(A2+B2)
WITH REGARDS 
MAHIMA 
ASKIITIANS FORUM EXPERT 
2 years ago
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