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(a) Write law of parallelogram of vector and obtain the expression for the resultant of two vectors acting in two different directions.

State parallelogram of law of vector addition .

Parallelogram law of vectors is applicable to the addition of :

Write the value of the area of the parallelogram determined by the vectors 2 hat i and 3 hat j .

prove by vector method that the sum of the squares of the diagonals of a parallelogram is equal to the sum of the squares of its sides.

Prove by vector method that the sum of the square of the diagonals of a parallelogram is equal to the sum of the squares of its sides.

Find the area of the parallelogram determined by the vectors: 2 hat i\ a n d\ 3 hat j