Let A=  2 5 -3 1 and B=  4 -5 3 k . Find k such that AB = BA

Q: Let ā and b = .Find —ӑ — 6. .Find - ӑ > ||

A: We will find -a-b as following.

Q: . If an+2 = 6an+1 - 8an + 3 and ao = 3, a1 = 7, then a6

A: We have to solve given problem:

Q: antip . Prove that 4" -3"-7 is a multiple of 84 for each positive even m.

A:

Q: if N {A} = 25 and N {B} = 31 and N { A n B } = 20 find n { A U B }

A: Given that n{A}=25 and n{B}=31 and n{A ∩B }=20   We have to find n{A∪B}  . We use the union property…

Q: Prove that A2=I.

A:

Q: If c = (−3, −5) and ♂ = (–2, −6), find |4č – 2.5d|. O √74 O √146 O 7√5 O 8√6

A:

Q: Simplity. Assume all exponents are positive integers. 35n 45x² 2. 35n² 25x 1. 4. p²-3p-54 p-9 5.…

A:

Q: a a + b Determine all values of a and b so that belongs to а 1 3 1 Span 1

A: We have

Q: In³ w 3 w√In²w-4 mp

A: Given :∫ln3wwln2w-4dw

Q: Which of the following is equivalent to 3 - V2 O A. V2 А. O B.-V2 3- V2 O C. 3+ v2 O D.

A:

Q: 2. For a positive real number b, the value V-b =

A: The given expression is -b

Q: Let A = {1, {b}, {1, b}} a. Place an e or in the blank to make each of the following statements…

A: ● Let x be an element of a set A , then its denoted as x∈A .● If All elements of a set B is present…

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

A:

Q: 4. If x # -4, which of the following represents 2x² + 14x + 24 in simplified form? 2x + 8

A:

Q: - 14 2 Let B = Find B. 6 0

A:

Q: Let a = (5, – 3, 6) and b = (5, 3, 4). (a – 6) × (ã + 6) -| X (a +

A: Given: a→=5,-3,6and b→=5,3,4

Q: prove the following statement.

A:

Q: 3) Find integers x and y such that 13x + 15y = 1.

A: We see, 15 - 13 = 2              => k(15 - 13) = 2k for any integer k              => 15 k -…

Q: - 12 dt = t2 +t – 2

A: We are using integration after decomposing it into partial fraction form

Q: 2. Find A if (A-1-21)² = -2 = -21]

A: Basic properties of matrix are used