rosala

208 Questions
3012 Answers

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i just thought this 30sec vid might give anyone whose too feeling stressed a bit of a tiny break.....

Dont Worry its child safe

https://www.youtube.com/watch?v=gu3KzCWoons

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rosala 28 ago 2020

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A little bit of recognition to our old friends.

Hey Everyone,
Hope you guys are doing well , mentally and physically,.I just wanted to make a post after a long long time.
lee mas ..

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rosala 11 jul 2020

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i have a few questions abt how the forum works.....

1.Why can i delete my questions?There is no deleting option.

2.Why cant i post anything on my previous questions?I tried but the posting option doesnt work?!
lee mas ..

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rosala 11 jul 2020

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Hey, i've got something to say....

Since it’s been a while I last came, its home coming for me right?

lee mas ..

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rosala 20 ago 2019

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a question involving lenses

the focal length of a concavo-convex lens of radius of curvature 5 cm and 10cm is 20cm. what will be its focal length in water.? given aµw = 4/3 .

ive tried solving this but my answer is incorrect, i have a bit of problem lee mas ..

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rosala 7 feb 2019

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Optics(a more clear thread)

i prevviously posted optics questions but turns out the image isnt clear, this time ive done better preparation,

https://www.photobox.co.uk/my/photo?album_id=5568759114&photo_id=501647551932 lee mas ..

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rosala 7 feb 2019

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Optics

Hey everyone,
how have you been,
im sorry i havent been here for months , and i know some of you mught be angry with me for posting a question and not getting back at it, and i really have no excuse except that i have so much to do thta lee mas ..

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rosala 7 feb 2019

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Reflection

An object is placed exactly midway between a concave mirror of radius of curvature 40cm and a convex mirror of radius of curvature 30cm. The mirrors face each other and are 50cm apart. Determine the nature and position of the image formed by successive lee mas ..

ElectricPavlov ●

rosala 2 dic 2018

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binomial theore tricky question

hey everyone, hows it going?

im having a really hard time doing this question, could anyone help...thanks in advance, i appreciate your hard work!!
lee mas ..

rosala 22 mar 2018

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Back At It With PnC

Hello everyone,

i know you all might be bored by now with this but i cant help it...ive got some more PnC questions...and there are more like these so if anyone could help thatd be great!
lee mas ..

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rosala 25 feb 2018

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Updates on my PnC questions!

hello everyone,

earlier i posted a few PnC questions and some of them are still unanswered and others in doubts. if you're interested in taking up the challege of making me understand or increase your knowledge, here are their links... lee mas ..

rosala 19 feb 2018

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2019

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PnC attacks!!!

1. Define a "good word" as a sequence of letters that consists only of the letters A, B, and C and in which A never immediately followed by B , B is never immediately followed by C , and C is never immediately followed byA. If the nuber of n-letter good lee mas ..

rosala 17 feb 2018

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A Shoutout post for CPhill! (and all those helping mathematicians)

CPhill, im really grateful to you.

You help this forum so much , devoting in your time to answer all of our questions , listen to our queries and help accordingly. It's so sweet and kind of you to do that. Im also lee mas ..

rosala 16 feb 2018

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Permutations and Combinations!

1.A telegraph has x arms and each arm is capable of (x-1) distinct positions , including the position of rest. The total no. of signals that can be made is?

2. How many natural numbers are there fro 1 to 1000 which have none lee mas ..

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rosala 16 feb 2018

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can anyone pls answer the first one!!!??

can anyone pls answer the first one!!!??

https://web2.0calc.com/questions/permutations-and-combinations-lt-3

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rosala 10 feb 2018

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Permutations and Combinations!!! <3

1.Find the no. of permutations of letters a , b , c , d, e , f , g taken all at a time if neither “beg” nor “cad” patterns appear in any word.

2.Find the no. of ways in which letter sof the word SQUARE can be lee mas ..

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rosala 9 feb 2018

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You Welcome!BTW Thanks for the points!And a point for ur opinion too from me!

rosala12 jul 2014

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CPhill ive been wondering for so many says and am still unable to figure out what is P.S !Can you please tell me!

rosala12 jul 2014

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Yes Melody that totally answers my question!Its really a long process to write a wrap!

But thanks for telling me all this!

rosala12 jul 2014

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Thats really funny CPhill!You made me laugh!Thumbs up from me!

rosala12 jul 2014

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oh okay!but i just saw u had written a whole answer for it!And u could add a diagram or pic to the answer when u get back home!That answer wasnt that bad!But as your wish , i was just asking!

rosala12 jul 2014

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Can you please tell me whats "rm"!

rosala12 jul 2014

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Hi everyone!

Out here Anonymous has written all of it in Persian!And ive got the question!If anyone knows the answer please help him!The question is :

Twenty-five to the power of minus two x squared x minus two equals five hit in five

So that was the question, if u can then please do help him!

i hope i have helped too Anonymous!

rosala12 jul 2014

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Yeah!And i too translated that!its so small that i couldnt even read it thats why i translated it!

rosala12 jul 2014

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NinjaDevo,I must say!You seem to be a genius!Very Good!

I give you a thumbs up for this!

rosala12 jul 2014

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Anonymous has written his name out here and ive told him nice name!

rosala12 jul 2014