Use Cramer's rule to solve for y without solving for x, z, and w. 4x + y + z + = 7 5x + 3y z + 8 W 7x + 2y 6z + 4w -5 y + z + 2w х + 3 y =

Q: Solve the system by using the inverse, and verify by Cramer's Rule. 4) 4x1 + 2x2 = -8 2x1 + 9x2 = 12

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Q: Values a and b satisfy (a + 1)2 + (b − 23)4 = 0. Compute the value of ab.

A: We have been given the equation (a + 1)2 + (b − 23)4 = 0

Q: 5u + 3 at u=3 2.

A: We need to find 5u+32 at u=3. So,       5u+32=5(3)+32=182=9.

Q: If 21 = (2, -1), z₂ = (6, 3), find 2₁ 22 - 22.

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Q: Solve for u. (u+3)² = 2u²+u+15 If there is more than one solution, separate them with commas.

A: Solution:-

Q: iv) (x+ yi)(3i + 2) = (2x – 3y) + (3x + 2y)i %3D

A: The detailed solution is given below Thank you

Q: If a = (-1, 1, 2) and b = (1,3,1), then which of the following gives |a - b|? Select one: O√9 O -√9…

A: This question is related to vectors, we will solve it using given information.

Q: Find u x v, v x u, and v x v. u = (2, -9, –1) v = (9, -2, -6) (a) ux v (b) v xu (c) v x v V

A: We need to find cross product.

Q: 3. Solve for X Y when using row operations. 2X + 4Y = 144 X +0.25Y = 30

A: The given system of equations

Q: Question 1.) Q R. 2x-16 15у-10 3x+9 Бу+90 T. Find the Value of x and y.

A: Given: To Find: x=?, y=?

Q: evaluate det(A) by a cofactor expression along a row or column of your choice

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Q: Solve for gb and gc. g(b, c) = (b - c) / (b + c)

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Q: alm +3)+ m= Bm 3m-

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Q: Ive: x- 2 x- 2 3 %3D 2/3

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Q: If p = 6i + 3j - 9k and q = 8i + 9j – 8k find pxq. pxq=| (Simplify your answer. Type your answer in…

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Q: B|a- Find u.v and v xu if u=i+2j-k and v=-2i+2j+2k

A: We have to solve given problem:

Q: If v = 7i + 3j and w = 4i - 5j, find 6v - 3w.

A: Given v=7i+3j and w=4i-5j We have to find 6v-3w. 6v-3w=67i+3j-34i-5j=42i+18j-12i+15j=30i+33j

Q: 4Axe +2Ae*+2Be = xe*

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Q: Evaluate A- using the method of adjoints 3 2 7 -3 3 4 1 A = 1 -4 -3 -4 1 -2

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Q: If web₁x-b₂y-b3z, w= where b₁,b2, b3 are constants and b² + b² + b = 1. Show that 8² w 8² w 8² w əx²…

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Q: Let w = (2, −2, 1) and v = (4, 5, −4). Solve for u if v + 5u =3w − u.

A: Simplification of the function helps to find the vector u. Component-wise operations help to get…

Q: A pair of digits (a, b) is such that 4a5b32 is a multiple of 66, find a+b.

A: Please see the below picture for detailed solution.

Q: ..=A+B Ā +B al. B = 2ī + 2j - 2K 3Ā = -i- 3j- k US 1/

A: Given A¯ = -i¯-3j¯-k¯B¯ = 2i¯ +2j¯ -2k¯

Q: 2. Solve using Gauss-Jordan Elimination and check using Cramer's Rule. X1 + 5x2 – x3 = 7 4x1 + 3x2 +…

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Q: a2z If z = In(x² + y²), find a²z + dx2 ду?

A: Given, z=lnx2+y2

Q: Solve for x and be sure to show Left side = Right side and Legal Moves. 7) Show all work. (Hint: Use…

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Q: Evaluate the expresslon when a=7 and x=-3. -a+6x

A: A detailed solution is given below

Q: Perform the given operation. (-31x + 20 + 37x + 27x? + 7x*) (x + 4) - 1 (-31x+ 20 + 37x° + 27x² +…

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