[1 2] If A = , then the adj A is 3 7 Select one: O None of the others 7 -2] -3 . 1 7 21 -3 -7 -2 -3 1 7 2 3 1 O O

Q: For "x is in A minus B" give an equivalent statement that uses "x is in A"  and "x is in B"

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Q: 1 which of the following is equivalent to 2x-4 O B. -4x²+6x + 5 0 4x²-6x-5 >0 E. 4-2x

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Q: Let B = [-1 1 4 -3] Find -4B

A: Solution

Q: Find, if possible, (a) AB and (b) BA.

A: We know the order of a matrix is defined as  ---->  m x n where, m = number of rows…

Q: 3. If AC = 26x-18 and BC = 23-2x, which expression represents AB? A B C

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Q: b b [²xettdx = = 1²e+du O True O False

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Q: Given A = 4 -5 8 -9 -1 2 -31 -6, find AT 1

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Q: Suppose that 6. 1 + В A 7 4 -3 C -7 7 -1 14 -3 -2 -8 -4 D 0 3 -4 -4 10 What are the values of A, B,…

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Q: Find, if possible, (a) AB and (b) BA.

A:

Q: Find, if possible, (a) AB and (b) BA.

A: (a) Consider the given matrices A and B. As the number of the rows is equal to the number of columns…

Q: AfA= 3 1-2 3 3 60/ and A + 9B = B= 4 4-5 -3 6 4 ? ? ? ?? a what is the value of the element a?

A: This is an question of summation of two matrix. The problem is solved by adding the matrix and then…

Q: If then A= 4 1 ܐܐ -5 -1 0 0 0 0 0 0 0 0 1 1 1 2

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Q: If ả = (–4, −8) and ☎ = (–2, −6), find |2.5ả – 36|. O 20 O 2√5 O-6 O 4√2

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Q: If then A-1 = A = 05

A: Given: To Find: To determine .

Q: If then A-1 - # 用 A = 1 5 -4 -9 0 0 1 4 -2 0 0 1 0 3 1 , 田

A: By Gauss-Jordan elimination: Let A=IA…

Q: If 2ª = 3b then =? O 1.4 O 1.5

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Q: Expand the following: (3q-q-¹)² (q²) O a. 9q²-q-² O b. 9q4-6q² O c. -9q²-6q²

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Q: Find the following expressions if a = (6r, 0, r), b = (6s, –s, 7s), and c = (2t, 10t, 5). a ·b = 1.…

A: We need to find dot product.

Q: if x = 6, then x + 4 < x − 26 Select one: O True O False

A:

Q: Let A = 1 1 1`1 1 1 1], B= CD c=H₁ 1 1 Which of the following expressions is NOT defined?

A: we need to find which of the given expressions is not defined.