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856

+2355

Stuck on a proof

Dear all,
I'm looking for the simplest way to give a proof to the following;
Let A be a non-singular matrix with transpose A' and inverse inv(A)
Let b be a vector with transpose b'.
Prove that for b' inv(A) b =//not equal to//= -1 inv( read more ..

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reinout-g Jan 27, 2014

790

logarithm

95=1-(1-5)^n
find n

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jyoti Jan 27, 2014

690

Not math but science. If I'm trying to calculate mass with density and volume, assuming density is measured in kg/m^3, can my volume measurements be in cm or

Not math but science. If I'm trying to calculate mass with density and volume, assuming density is measured in kg/m^3, can my volume measurements be in cm or do I have to convert them to m?

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Guest Jan 27, 2014

820

Applications of Integration

Dear All,
Please help to check my answer of below question :
Question :
Marginal Revenue function of a product is = MR = 12Q (2Q 2+5) 3
Determine the Revenue function. Answer : TR = ∫ MR = ∫ 12Q (2Q 2+5) 3 = ∫ 12Q read more ..

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Guest Jan 27, 2014

641

Help!! 7th grade algebra!

What is 8.37 multiplied by 10 to the -6th power?

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Guest Jan 27, 2014

732

Qeustion

what is 0.000000090072 in scientific notation?

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Guest Jan 27, 2014

705

help

what is csc of theta=2.796

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Guest Jan 27, 2014

626

i need help

The center of a line segment is at 5. If the line segment has length of 12, what is the sum of the end-points of the line segment?

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Guest Jan 27, 2014

558

iiihjW

will u mary me

Guest Jan 27, 2014

480

math

Ask a Math Question!

Guest Jan 27, 2014

705

math

8500 to -1/3 power

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Guest Jan 27, 2014

996

Substitution

5r-s=5
-4+5s=17

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Guest Jan 27, 2014

Jan 26, 2014

751

radical formulas

What is 23245^-1/3?

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Mycowboyrocks Jan 26, 2014

936

math

ms zling deposited 850 in a savings account that paid 4.25% simple interest. what was the balance at the end of 2 years

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Guest Jan 26, 2014

753

Helpwithmath

Carl bought some dope for 25 000$ after 4 year the dope that he had once bought costs only 4000$ now. How much reduction in percent did the dope get reduced by yearly? If you don''t know the answer with calculation, do not attempt to help as it will only make read more ..

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FatlumFerizi100 Jan 26, 2014

913

:?: 22/7 as a fraction is equal to pi ? am i right ?

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gaby_1026 Jan 26, 2014

445

Geometry

what is your favorite color?

Guest Jan 26, 2014

514

maths

a circle has a radius of 6.1 cm,
work out the area of the circle

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Guest Jan 26, 2014

696

MATHS

positive square roots what are these what does the positive mean?

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Guest Jan 26, 2014

744

alad

calculatdist Quote: [/quote[list=]][/list]ance between the poi :roll: ;) nts A(2,1) and
Quote: [list=][inputrad][right][left]
[center]%20B(6,4)[/center][/left][/right][/inputrad]' border='0' alt='0'>[/list] read more ..

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Guest Jan 26, 2014

726

Help

How can you find the answer to 10 divided by 6 as a decimal

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Guest Jan 26, 2014

825

Linear Equations and inequalities in one variable

what is the next consecutive integer after 1306?

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Guest Jan 26, 2014

655

math

how do i do this g-2<-8

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Guest Jan 26, 2014

638

Rational Numbers

If x = and y = -, then x2 + y ÷ 4 has a value of:

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Guest Jan 26, 2014

619

calculating price

How do I calculate?
Purchased sale price is $658 is 35% of what Original price? (Do not include tax).

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Guest Jan 26, 2014

All Questions ⁺⁰238360 Questions

Stuck on a proof

logarithm

Not math but science. If I'm trying to calculate mass with density and volume, assuming density is measured in kg/m^3, can my volume measurements be in cm or

Applications of Integration

Help!! 7th grade algebra!

Qeustion

help

i need help

iiihjW

math

math

Substitution

radical formulas

math

Helpwithmath

:?: 22/7 as a fraction is equal to pi ? am i right ?

Geometry

maths

MATHS

alad

Help

Linear Equations and inequalities in one variable

math

Rational Numbers

calculating price

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