₦airaland Forum

Martinez39s:
The parametric equations, using t as the parameter, of the line are
x = 1 – t, y = 4 + 5t, z = –3 – 6t

The symmetrical equations are
1 – x = (y – 4)/5 = (–3 – z)/6

Note that the parametric and symmetrical equations of a line in 3-space are not unique.

Am confused here sir

Martinez39s:
A knowledge of Linear Algebra will be useful, especially that of the concept of a determinant. You need to form a 4 × 4 matrix using the coordinates of these points, four 1's and the x, y, and z variables. The equation of the line is –3x + 3y – 4z + 2 = 0.

Thanks for your time,but can you help shed more light on this

Waziced:
Only you ask 5five questions.
Slow down na

Na so mathematics be o

Uyi168:
Answer na - 2. Dont ask me how..

Hmm, let me ask how for asking sake

5. Determine if the line that passes through the point (0, -3,8 ) and is 2t and is parallel to the line given by x=10+3t, y=12t and z=-3-t, passes through the xz-plane . If it does , give the coordinates of the point.

4. Write the equation of the line that passes through the points (2, -1, 3) and (1, 4, -3).

II. Write all three forms of the equation of the line.

3. Determine the equation of the plane containing the points P=(1, 3, 2), Q=(-2, 0, -2) and R=(1, 4, 3)

2. State the equation and sketch the graph of the following: I.cylinder

II.elliptic paraboloid

III. hyperbolic paraboloid

IV.ellipsoid

1. Show that the plane given by -x+2z=0 and the line given by r(5, 2-t, 10+4t) are orthogonal,parallel or neither

[quote author=NDSMELODY post=95381356][/quote]Thanks for this

NDSMELODY:
Last part

Thank you for this

Aluminumquadri:
x=e^-t, y=2cos3t, z=2sin3t, where x, y, z are positional vectors dependent on t. x'=-e^-t, y'=-6sin3t, z'=6cos3t where ' denotes d/dt (speed/ velocity). x"=e^-t, y"=-18cos3t, z"=-18sin3t (acceleration). When t=0 these are x"=1, y"=-18, z"=0. The magnitude of the acceleration denoted by " is: √(x"^2+y"^2+z"^2)=√ (1+324)=√325=5√13=18.0278

A very big thank you for this

a particle moves along a curve whose parametric equations are.

x=e^-t, y=2cos3t, z=2sin3t {where t is the time }



a. determine its velocity and acceleration at any time



b. find the magnitude of the velocity and acceleration at t=0

You shall not beg before you eat. Amin

Sir I know you have tried by giving your little help to people, please don't count me out from this give away. Even if it is #500. I would buy garri which will sustain me and my family for ,4days. This money is too big fo r my family.

2209532777
Zenith bank

Nay Allah reward you abundantly on earth and hereafter
Allah uma amin.
This money will go a long way in my life sir.

Explorers:
Eleven people have been killed, a million are without power and thousands have been left stranded after a fierce typhoon lashed Japan.

Hundreds more were injured when homes and infrastructure along the west coast were devastated by Typhoon Jebi Japan's most powerful storm in a quarter of a century.

Kansai International Airport one of the country's busiest was cut off when a 2,500-ton tanker smashed into the terminal's sole access road meaning thousands had to spend the night in the partially flooded facility.

This morning, boats were ferrying stranded passengers to the mainland while footage showed a caravan of buses making a perilous trip across the damaged bridge yards from the spot where the ship had crashed into the carriageway amid 135mph winds yesterday.

Runways were flooded as high waves washed into the facility on Tuesday, knocking out electricity and inundating buildings.







Kansai International Airport is built on artificial islands in Osaka Bay, and the high seas flooded the two runways (pictured).


Hundreds of flights have been cancelled across Japan after the typhoon struck.


This was the scene at Kansai International Airport yesterday.


This was the view from a window at Kansai International airport in Japan after it was flooded during the typhoon.





http://www.dailymail.co.uk/news/article-6132639/More-100-cars-engulfed-flames-Typhoon-Jebi-smashes-Japan.html
Lalasticlala, Mynd44

Manmen

concerned nairaland brother and sister to pls help me with any amount to raise the school fee may God reward you as you do so

pls help me I don't want to forfeit my admission pls help a bro
The type of work am doing right now can't raise that sum of money I need your support may God bless you all


Lalaclaticla and seun
Help me push to fp

barackodam:
the fees was announced last month?

have previous students been attending free of charge.

if a school's fees is 200k, it means the previous session, they paid at least 150k, so what's the fuss?

you get my point?

he should have known how expensive the school is before applying

That is the greatest mistake I have made so far am regretting right now pls help a bro

adeleye17:
wat is ur password

You can send me p.m because it risky to display my passwords to public

Need2learnmuch:
have sent a token I will see what I can do so disheartened

Thanks so much may God bless you

a

[color=#000000][/color] am waiting

subject combinations of o level for candidates who want to study mathematics
Pls I really need to know from eminent And prudent nairalander

[color=#000000][/color] I hope you learn one or two things

[color=#000000][/color]
Nobody to solve am waiting

[color=#000000][/color].






nairaland beggars I hail una
old full you like still dey beg
Bastard

[color=#000000][/color]

Hmm am learning

I really need to know