1,954 Answered Questions for the topic linear algebra
Linear Algebra
12/22/21
please help me with this problem
line passes through (4,-2) and slope 5/4 write an equation in slope intercept form
Linear Algebra Linear Equations
12/22/21
Find the whole answer of Ax = b, including all steps.
A = [2 4 642 5 762 3 52] b = [b1b2b3] = [435]
12/21/21
Linear Algebra Question
Let V = P2 equipped with the inner product <f, g> = integral from -1 to 1 of t * f(t) *g(t) dtconsider the linear transformation T from V into R such that T(f) = f(0)Find a basis of the...
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Linear Algebra Linear Equations
12/20/21
How to Graph a Line given 1 point and the slope!
Graph the line that contains the point (-4, -7) and has a slope of 2 (m = 2).
Linear Algebra
12/16/21
Maximize f=7x+5y subject to the following constraints and and find the shadow price for Constraint 4 :
Constraint 1: 3x+4y<=24Constraint 2: 2x+y<=10Constraint 3: x =>1Constraint 4: y<=5x and y are non-negative
Linear Algebra
12/13/21
Linear Algebra - Finding values
Find all the values of the sixth root for the following: (-1-i)^1/6
Linear Algebra
12/01/21
Write an equation in slope-intercept form for the line passing through the pair of points. (6, 4) (4, -5)
Write an equation in slope-intercept form for the line passing through the pair of points. (6, 4) (4, -5)
Linear Algebra Math
11/29/21
6. Harry is buying a mix of almonds and peanuts. Almonds are $15/kg and peanuts are $5/kg. Harry spends $75 in total.
continuation from the previous question^^^6. a)Write an equation to model this situation. Define your variables. 6. b) If Harry only buys almonds, how many kg can he buy?
Linear Algebra Math
11/29/21
The sum of two numbers is 12. The difference is -2. What are the two numbers? Define your variables.
Linear Algebra
11/28/21
Invert these matrices A by the Gauss-Jordan method starting [AI]
A = [1 0 0 2 1 3 0 0 1] and A =[ 1 1 1 1 2 2 1 2 3 ]
Linear Algebra
11/23/21
Answer each of the following as True or False justifying your answers
If is a skew symmetric matrix such that , then . If , and is a matrix such that and , then .If and are both inverses of the matrix , then .If , then .If and are linearly independent...
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Linear Algebra
11/20/21
i cannot solve this exerccise
Let M = {1, 2, 3, 4, 5, 6, 7, 8, 9}. As usual, denote ¨ P (M): = {A | A ⊆ M} is the power set of M. We consider the maps⊕: P (M) × P (M) → P (M) and *: F2 × P (M) → P (M),byA ⊕ B: = A triangle B...
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11/16/21
Write an equation in slope-intercept form of the line with a slope of −3 4 and y-intercept of =0
Linear Algebra
11/14/21
I cannot solve the following
Prove that K= {(x+y,y), x in R ,y in Z } is a subgroup of (R^2,+).
Linear Algebra
11/14/21
I cannot solve the following exersice
Prove that H = {(2k,3k) when k in R} is a subgroup of( R^2,+)
Linear Algebra Math
11/12/21
A pole that is 3m tall casts a shadow that is 1.64m long. At the same time, a nearby tower casts a shadow that is 44.5m long. How tall is the tower? Round your answer to the nearest meter.
A pole that is 3m tall casts a shadow that is 1.64m long. At the same time, a nearby tower casts a shadow that is 44.5m long. How tall is the tower? Round your answer to the nearest meter.
Linear Algebra Linear Independency
11/12/21
Linear independency
Why the set S is linearly independent ? Don't we have theorem which indicate that when we have signal set it is linearly independent. For example: (2,5,9,8,6) The set S={2sin , 2cos , 3} 2 2 x x is...
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Linear Algebra
11/12/21
Explain why the following sets are not vector subspaces of the indicated vector spaces. W = {(x, y) ∈R^2 |x, y ∈Q}.
11/09/21
Find the local linear approximation L(x) of the function f(x)=x^2+3 at x=1 .
It will be really helpful if you describe briefly.
11/08/21
Find the local linear approximation L(x) of the function f(x)=x^2+3 at x=1 .
f(x)=x2+3 at x=1
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