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 авг. 2020 г.

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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.
прочитайте больше ..

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rosala 11 июл. 2020 г.

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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?!
прочитайте больше ..

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rosala 11 июл. 2020 г.

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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?

прочитайте больше ..

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rosala 20 авг. 2019 г.

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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 прочитайте больше ..

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rosala 7 февр. 2019 г.

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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 прочитайте больше ..

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rosala 7 февр. 2019 г.

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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 прочитайте больше ..

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rosala 7 февр. 2019 г.

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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 прочитайте больше ..

ElectricPavlov ●

rosala 2 дек. 2018 г.

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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!!
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rosala 22 мар. 2018 г.

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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!
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rosala 25 февр. 2018 г.

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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... прочитайте больше ..

rosala 19 февр. 2018 г.

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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 прочитайте больше ..

rosala 17 февр. 2018 г.

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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 прочитайте больше ..

rosala 16 февр. 2018 г.

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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 прочитайте больше ..

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rosala 16 февр. 2018 г.

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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 февр. 2018 г.

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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 прочитайте больше ..

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rosala 9 февр. 2018 г.

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thats really a great post DragonSlayer!i would give you a point for that!

And for new users, always be free to ask a question or clear your doubts!

rosala26 авг. 2014 г.

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yes!!!

rosala25 авг. 2014 г.

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i think by now u should give us the answer!

another option

wait for a week to get the answer!

your choice!

rosala25 авг. 2014 г.

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i think so!you know when i was in 6th standard my birthday was on the day of my SSt exam!but still i could enjoy it!i love recieving gifts!

rosala25 авг. 2014 г.

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okay then i'll go in october!uhh i hate exams!and u know my birth day is also in exams ! on 17th sep!

rosala25 авг. 2014 г.

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Thank you DragonSlayer!

rosala25 авг. 2014 г.

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when do we have to go!sorry i cant go my exams are coming in sep!

rosala25 авг. 2014 г.

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oh okay!

rosala25 авг. 2014 г.

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i think DragonSlayer is too pleased with CPhill as he is always struggling to make him rich!DS we are CPhill's friends so make us rich as well!

rosala25 авг. 2014 г.

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No CPhill!i didnt check for the answer there!actually , i had over reacted on giving the answer becoz it was just a guess but i was confident as well cuz i knew theres only one word with X thats X-ray! anyways i just won though!

i see i have been missing a lot of riddles!but nevermind now IM BACK!

rosala24 авг. 2014 г.