Mathematics: Post your doubts here!

[***amd***]

no bro dint get :S

see this is the formula worksheet here whats this useed for then

give me the whole of question? and its link too. I mean which year and which paper.

 

[Dubi Pro]

Maay June 2010 Q5 Part (E)

here http://papers.xtremepapers.com/CIE/Cambridge IGCSE/Mathematics (0580)/0580_s10_qp_42.pdf

 

[***amd***]

Maay June 2010 Q5 Part (E)

here http://papers.xtremepapers.com/CIE/Cambridge IGCSE/Mathematics (0580)/0580_s10_qp_42.pdf

oooooh... sorry sorry sorry...
change the length of HT to cm
90 km = 90 * 1000 * 100 = 9000000
and 1/n = 4.5/9000000
got it?
for such type of scales when you are not given the unit to represent on the scale, u have to keep the same unit on both sides.
4.5 cm on map represents 9000000 cm in reality. and this scale becomes applicable on ANY unit....
4.5 m on map represent 9000000 m in reality
and even 4.5 feet on map represent 9000000 feet in reality.

 

[Dubi Pro]

oooooh... sorry sorry sorry...
change the length of HT to cm
90 km = 90 * 1000 * 100 = 9000000
and 1/n = 4.5/9000000
got it?
for such type of scales when you are not given the unit to represent on the scale, u have to keep the same unit on both sides.
4.5 cm on map represents 9000000 cm in reality. and this scale becomes applicable on ANY unit....
4.5 m on map represent 9000000 m in reality
and even 4.5 feet on map represent 9000000 feet in reality.

but the MS says 2000000

which is 1:2000000

 

[***amd***]

but the MS says 2000000

which is 1:2000000

bro,
1/n = 4.5 / 9000000
thus n = 9000000 / 4.5 = 2000000
thats it

 

[Dubi Pro]

thanks Alot Bro!

 

[Dubi Pro]

guys! the iii part of question 2B

they told if OV IS v and OL is 2LV

what is Vector ML then? :S anyone to help?

 

[***amd***]

guys! the iii part of question 2B

they told if OV IS v and OL is 2LV

what is Vector ML then? :S anyone to help?

ML = - OM + OL
if you have found out b(ii), then you can do it

 

[Dubi Pro]

ML = - OM + OL
if you have found out b(ii), then you can do it

Yes thts fine. but just wanted to ask if OV Is v .

what is LV and OL?

 

[***amd***]

Yes thts fine. but just wanted to ask if OV Is v .

what is LV and OL?

yes the Q says that OV = v

OL + LV = OV
OL = 2/3 of OV
LV = 1/3 of OV
2 LV = OL

 

[Dubi Pro]

yes the Q says that OV = v

OL + LV = OV
OL = 2/3 of OV
LV = 1/3 of OV
2 LV = OL

Thats the exact confusion i have.. how did u managge u get 2/3? i tried so much!

its written LO is 2 times LV . so shouldnt LV be half?:S why 1/3?

 

[***amd***]

Thats the exact confusion i have.. how did u managge u get 2/3? i tried so much!

its written LO is 2 times LV . so shouldnt LV be half?:S why 1/3?

2 LV = OL
and LV + OL = OV
LV + 2LV = OV
3 LV = OV
LV = 1/3 OV
got it?

 

[Awesome12]

2 LV = OL
and LV + OL = OV
LV + 2LV = OV
3 LV = OV
LV = 1/3 OV
got it?

doing a good job here. I was thinking that we start tutoring people. Earn paisa.. u know

 

[Dubi Pro]

2 LV = OL
and LV + OL = OV
LV + 2LV = OV
3 LV = OV
LV = 1/3 OV
got it?

go it bro got it! genius!

btw for this question how is it 145-48? i mean any specific angle property?

forgive me for foolish doubts btw!

 

[Dubi Pro]

doing a good job here. I was thinking that we start tutoring people. Earn paisa.. u know

You should!

 

[Awesome12]

You should!

But i don't think my sidekick will accept my suggestion

 

[Awesome12]

go it bro got it! genius!

btw for this question how is it 145-48? i mean any specific angle property?

forgive me for foolish doubts btw!

(Rule) SPQ + SRQ = 180

 

[Dubi Pro]

(Rule) SPQ + SRQ = 180

yea i agree they are supplementary but can u see this diagram may be u dint get my doubt?

supplementary can be in 2 ways if the line is drawn in the cyclic quad.

juss reveiw the diagram you will get it?

 

[Dubi Pro]

so u see only part of the angle is supplementary or the whole thing?

 

[Awesome12]

so u see only part of the angle is supplementary or the whole thing?

The whole thing
(x2 +x4) + (x1 + x3) = 180