Advertisements
Advertisements
प्रश्न
Evaluate the following :
`|(2,1) ,(3,2),(1 , 1)| |(1 , -2 , 1),(2 , 1 , 3)|`
Advertisements
उत्तर
`|(2,1) ,(3,2),(1 , 1)|_(3 xx 2) |(1 , -2 , 1),(2 , 1 , 3)|_(2 xx 3)`
`= |(2+2 , -4+1 , 2 + 3),(3 + 4 , -6+2 , 3 + 6),(1 + 2 , -2 + 1 , 1 + 3)|`
`= |(4 , -3 , 5),(7 , -4 , 9),(3 , -1 , 4)|_(3 xx 3)`
APPEARS IN
संबंधित प्रश्न
If A = `[(8, -3)]` and B = `[(4, -5)]`; find A + B
State, with reason, whether the following is true or false. A, B and C are matrices of order 2 × 2.
(A – B) . C = A . C – B . C
State, with reason, whether the following is true or false. A, B and C are matrices of order 2 × 2.
A2 – B2 = (A + B) (A – B)
Evaluate the following :
`|(0 , 1 , 0),(2 , 0 , -3),(1 , 0 , -2)| |(1 , -2),(3 , 4),(0 , 0)|`
If P = `|(1 , 2),(2 , 1)|` and Q = `|(2 , 1),(1 , 2)|` find P (QP).
If P =`|(1 , 2),(3 , 4)|` , Q = `|(5 , 1),(7 , 4)|` and R = `|(2 , 1),(4 , 2)|` find the value of P(Q + R)
Let A = `|(3 , 2),(0 ,5)|` and B = `|(1 ,0),(1 ,2)|` , find (i) (A + B)(A - B) (ii) A2 - B2 . Is (i) equal to (ii) ?
If A = `[(1,2,3), (2,k,2), (5,7,3)]` is a singular matrix then find the value of 'k'.
`[(2, -1),(5, 1)]`
The construction of demand line or supply line is the result of using
