Maths, Addmaths and Statistics: Post your doubts here!

[AbbbbY]

Why?I mean u just have to rotate,right?No decryption error or anything like tht

 

[M.Omar]

Don't know why it could not be copied and manipulated,But there u go...

 

[AbbbbY]

Don't know why it could not be copied and manipulated,But there u go...

a i) -a + b
ii) a
iii) a + b

b i) 4:25
ii) 20:25

Where's my cookie.

 

[M.Omar]

a i) -a + b
ii) a
iii) a + b

b i) 4:25
ii) 20:25

Where's my cookie.

B parts slightly off and I repeat slightly
But how did u even get there .Done before or....
elaborate if u can
P.S don't need to be lengthy

 

[M.Omar]

a i) -a + b
ii) a
iii) a + b

b i) 4:25
ii) 20:25

Where's my cookie.

One more thing wht do u reckon is the value of DQ ..
Just a minor check

 

[AbbbbY]

B parts slightly off and I repeat slightly
But how did u even get there .Done before or....
elaborate if u can
P.S don't need to be lengthy

How off.
Is it 4:21?

 

[M.Omar]

How off.
Is it 4:21?

Yup... thts it or the other way arnd 21 by 4 coz they asked for the ratio in which R divides the line so ratios of 2 separate lines DR and RB
How did u arrive at the ans. Judging frm u it means u,ve done it easily or have u done before ..Just final thing Elaborate on the b part (just main points)

 

[AbbbbY]

Yup... thts it or the other way arnd 21 by 4 coz they asked for the ratio in which R divides the line so ratios of 2 separate lines DR and RB
How did u arrive at the ans. Judging frm u it means u,ve done it easily or have u done before ..Just final thing Elaborate on the b part (just main points)

Done it before? Like I said. I don't do questions from the books

What's the answer to the other part? I'm not sure how to explain. It's a pretty long working.

 

[M.Omar]

Done it before? Like I said. I don't do questions from the books

What's the answer to the other part? I'm not sure how to explain. It's a pretty long working.

Aren,t u supposed to tell
And wasn,t the question difficult?seeing tht u arrived at the answer in fairly small amount of time

 

[AbbbbY]

Aren,t u supposed to tell
And wasn,t the question difficult?seeing tht u arrived at the answer in fairly small amount of time

I'm pretty sure it's 1:4

__

Anyway. Was a pretty easy question tbh. Never found O Level Vectors challenging. Or anything olevel, for that matter.

I thought about writing it again neatly, but I figured it was too much hassle.
I know I've written as if I were using my foot, but if it doesn't make any sense, let me know and I'll write it again, neatly.

Sorry for the delays. Was figuring out a method to transfer pics from my phone without a cable. Then, I realized I could upload them directly using my phone -__-

Right side is all Y, left side all X. I mixed them up because I was shifting rapidly between the two. i.e solving the halves simultaneously.

EDIT: Just noticed. First pic, last line. It's 4a/5x. Missed the 5 in the hurry.

 

[M.Omar]

I'm pretty sure it's 1:4

__

Anyway. Was a pretty easy question tbh. Never found O Level Vectors challenging. Or anything olevel, for that matter.

I thought about writing it again neatly, but I figured it was too much hassle.
I know I've written as if I were using my foot, but if it doesn't make any sense, let me know and I'll write it again, neatly.

Sorry for the delays. Was figuring out a method to transfer pics from my phone without a cable. Then, I realized I could upload them directly using my phone -__-

Right side is all Y, left side all X. I mixed them up because I was shifting rapidly between the two. i.e solving the halves simultaneously.

Have understood it finely except for the DR=b/5 + 4a-b/5x=.... I mean how did this equation become the equation at the last line of the first page.Btw Awesome concept bro

 

[M.Omar]

I'm pretty sure it's 1:4

__

Anyway. Was a pretty easy question tbh. Never found O Level Vectors challenging. Or anything olevel, for that matter.

I thought about writing it again neatly, but I figured it was too much hassle.
I know I've written as if I were using my foot, but if it doesn't make any sense, let me know and I'll write it again, neatly.

Sorry for the delays. Was figuring out a method to transfer pics from my phone without a cable. Then, I realized I could upload them directly using my phone -__-

Right side is all Y, left side all X. I mixed them up because I was shifting rapidly between the two. i.e solving the halves simultaneously.

EDIT: Just noticed. First pic, last line. It's 4a/5x. Missed the 5 in the hurry.

With all due acknowledgement , I must say tht u still found this easy?.. ...took me 2 hrs personally...posted it before,no reply
A job well done

 

[AbbbbY]

Have understood it finely except for the DR=b/5 + 4a-b/5x=.... I mean how did this equation become the equation at the last line of the first page.Btw Awesome concept bro

Haha. I figured you'd get stuck here.
I skipped two steps here (or 2.5 more like). Practice these enough and you'll too. But, don't do this in O Levels bec they usually ask for the steps there. Like a lot of marks for the steps.

Basically, it's

b/5 + (4a-b)/5x = a+b/y
I need the a's on one side and the b's on the other.

b/5 + 4a/5x -b/5x = a/y + b/y

=> 4a/5x - a/y = b/y - b/5 + b/5x

=> (4ay-5ax)/5xy = (5bx-bxy+by)/5xy

=> a(4y-5x)=b(5x-xy+y)

 

[AbbbbY]

With all due acknowledgement , I must say tht u still found this easy?.. ...took me 2 hrs personally...posted it before,no reply
A job well done

Practice it enough and you'll ace it too. Seriously, O level vectors are nothing. Wait till the planes kick in and they start twisting the questions
Still 2 years before you have to witness that though.

 

[M.Omar]

Haha. I figured you'd get stuck here.
I skipped two steps here (or 2.5 more like). Practice these enough and you'll too. But, don't do this in O Levels bec they usually ask for the steps there. Like a lot of marks for the steps.

Basically, it's

b/5 + (4a-b)/5x = a+b/y
I need the a's on one side and the b's on the other.

b/5 + 4a/5x -b/5x = a/y + b/y

=> 4a/5x - a/y = b/y - b/5 + b/5x

=> (4ay-5ax)/5xy = (5bx-bxy+by)/5xy

=> a(4y-5x)=b(5x-xy+y)

Hey It,s a big fat U and I repeat YOU who missed the denominator of 5 in the 4a-b/(5)x

 

[M.Omar]

Practice it enough and you'll ace it too. Seriously, O level vectors are nothing. Wait till the planes kick in and they start twisting the questions
Still 2 years before you have to witness that though.

3D Vectors.So u are in A levels I reckon,this Ques was supposed to be for O level Oh well!cest la vie

 

[AbbbbY]

Hey It,s a big fat U and I repeat YOU who missed the denominator of 5 in the 4a-b/(5)x

Still gets me full marks in the exam.

Also, look in the post, I've already corrected that long ago. -_-

 

[AbbbbY]

this Ques was supposed to be for O level

I believe this is a help thread, not a 'challenge' thread. So, whoever can help, should help. Just waht I feel.

Additionally, this concept, the one used in this question, starts and ends at O Levels. A Level Vectors are very, very different.

 

[M.Omar]

Still gets me full marks in the exam.

Also, look in the post, I've already corrected that long ago. -_-

U edited abt 21 min ago while I had inquired fro tht abt 23 min ago.So I understood,posted my reply of acclamation ..Then u post a reply to my aforementioned inquiry post......Needless to say u were late .but I get ur point and thnx for ur time.LoNow if I may be excused I Must Sleep

 

[M.Omar]

I believe this is a help thread, not a 'challenge' thread. So, whoever can help, should help. Just waht I feel.

Additionally, this concept, the one used in this question, starts and ends at O Levels. A Level Vectors are very, very different.

Just wanted a change in monotony tht,s all.(Absolutely no problem with ur intervention)