If A = Thus, A-1 [28] then det (A) is Choose and det(A-¹) =

Q: Evaluate if x=4,8,3,-2 ∑x ∑x+1 ∑(x+1) 3∑x - 4

A: Given that  if x=4,8,3,-2

Q: -1) nt2 3.

A: To evaluate:    Rewrite the given form in simplified form:

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

A: Solution

Q: ;) 2r-11x-21 0 ii) x + x 22

A: 1)                                          2X2-11X-21 =0                         To solve this…

Q: 6 and an nan-1 + 2 then find If a1 the value of az.

A:

Q: so-Z of what is 21

A:

Q: How do you know whether it is associative and has an identity

A: Here, we have to check for associativity and identity element.

Q: L4 for x2+1 고 on [-2,2]

A:

Q: given 7(x-1)=2(3x+2) prove x=11

A:

Q: Find integers x and y so that gcd(3953, 1829)=3953x+1829y. x=2,y=5 x=-12,y=-13 x=-6, y=13 x=6,y=-13…

A: Solution:we have to find integers and so that first we find gcd of (3953,1829)here we see that…

Q: Evaluate each of the following for x = 5, 7, 9 and 2. ∑x2 ∑x2 – 5  ∑(x2−5) 2∑x2- 5  2(∑x2- 5) 2)

A: Given:   X = 5, 7, 9, and 2.

Q: ind AxB for A = {1,2} and B = {r,s, t} %3D

A:

Q: 2 4. Express 989 = 23 43 in the form x² + xy + 5y².

A: The given number is 989. The objective is to express the given number in the form of x2+xy+5y2.

Q: FinD Z 1. to #a-z°

A: Givenz=-2

Q: Is det(AB) = det(BA)?

A: Use this fact that multiplication of two real numbers is commutative.