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The number of ways in which any four letters can be selected from the word “CORGOO’ is?

what is this points concept for answering the questions in adda....please explain me??

is there any technique to handle synonyms and antonyms or mugging is the only technique to handle it......please clarify my doubt

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2^48Mod 100 = 2^46Mod25 ; using euler @(N)=4 => 2^44Mod25=1 =>Rem(16) What's wrong in this

In a video lecture which is related to inequalities chapter.......for an example problem g(x)=|x-2|+|x-3|+|x-6|. find the least possible value of g(x)....it has been in the second step of the solution that 2<=x<=3, g(x)=7-x, minimum at x=3 and g(x)=4....please explain me about this step and other steps also.......thank you

a-b varies directly with a+b, a^2-b^2 will vary directly with

find the unit digit of 82^83^84^85..can u explain its solution..i.e how it is simplified in the form of 4k+1

say dry 42 96 get 39 kite 67

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