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प्रश्न
Wherever possible, write the following as a single matrix.
`[(2, 3, 4),(5, 6, 7)] - [(0, 2, 3),(6, -1, 0)]`
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उत्तर
`[(2, 3, 4),(5, 6, 7)] - [(0, 2, 3),(6, -1,0)]`
= `[(2 - 0, 3 - 2, 4 - 3),(5 - 6, 6 + 1, 7 - 0)]`
= `[(2, 1, 1),(-1, 7, 7)]`
संबंधित प्रश्न
The bookshop of a particular school has 10 dozen chemistry books, 8 dozen physics books, 10 dozen economics books. Their selling prices are Rs 80, Rs 60 and Rs 40 each respectively. Find the total amount the bookshop will receive from selling all the books using matrix algebra.
State, with reason, whether the following is true or false. A, B and C are matrices of order 2 × 2.
A + B = B + A
Find cofactors of the elements of the matrix A = `[(-1, 2),(-3, 4)]`.
Find the values of a, b, c and d, if `|("a + 3b", 3"c" + "d"),(2"a" - "b" , "c" - 2"d")| = |(5 , 8),(3 , 5)|`
Evaluate the following :
`|(1 , 1),(2 , 3)| |(2 , 1),(1 , 4)|`
Evaluate the following :
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If A = `|(3,-2),(-1 , 4)|` , B = `|(2"a"),(1)|` , C = `|(-4),(5)|` , D = `|(2),("b")|` and AB + 2C = 4D then find the values of a and b.
If A = `[(7,1), (2,5)]` and B = `[(1,2), (3,-1)]` then verify that |AB| = |A| |B|.
`[(0, 0, 0),(0, 0, 0)]`
Choose the correct answer from the given four options :
If A = [aij]2×2 where aij = i + j, then A is equal to
