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Binomial Theorem Free Doubts and Solutions

CBSE - XI Science - Mathematics - Binomial Theorem

I have tried The solution for T5 but cant do it. It is slightly difficult to solve for me. So please send me the solution of the above to find T5.

Asked by sudhanshubhushanroy 9th November 2017, 8:39 AM
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CBSE - XI Science - Mathematics - Binomial Theorem

What is the number of ways of choosing 4 cards from a pack of 52 cards. In how many of these cards are either red or black.
 

Asked by kuriakose7600 2nd January 2016, 11:24 PM
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CBSE - XI Science - Mathematics - Binomial Theorem

thank you sir!!!! but in the first one,, if we have to find 1/x then why n-r =1 why not n-r=-1 And answer is (2n)!/ [(n-1)!(n+1)!]

Asked by Nirbhay 6th November 2014, 9:42 AM
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CBSE - XI Science - Mathematics - Binomial Theorem

2.42n + 1 + 33n + 1 for all n is divisible by which of the number - 2, 3, 4, 11.

please explain how we can solve such types of other question.

Asked by BHAVYA PREETI 15th October 2014, 11:03 AM
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CBSE - XI Science - Mathematics - Binomial Theorem

what are the ideal books for preparation for iitjee in physics chemistry and maths

 

Asked by Viswanath 27th April 2014, 5:01 PM
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CBSE - XI Science - Mathematics - Binomial Theorem

if the 6th,7th,8th & 9th terms in the expansion of (x+y)n are respectively a,b,c&d then show  that b2 - ac/c2 -bd=4a/3c

Asked by Udit Narayan Sabar 26th April 2014, 10:19 PM
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CBSE - XI Science - Mathematics - Binomial Theorem

krhow

Asked by Akshay patil 30th March 2014, 2:31 PM
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CBSE - XI Science - Mathematics - Binomial Theorem

find the coefficient of x^n  in the expansion of log(1+x+x^2)

Asked by Sneha Kashyap 30th March 2014, 10:30 AM
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CBSE - XI Science - Mathematics - Binomial Theorem

f th coefficient of 2nd, 3rd, 4th terms in the expansion (1+x)2n are in A.P., show that 2n2-9n+7=0...

Asked by aryan-Srivastava 21st March 2014, 12:52 PM
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CBSE - XI Science - Mathematics - Binomial Theorem

The coefficients of 2nd, 3rd and 4th term in expansion of [(1+x)raise to power n] are in A.P .Prove that 2n [power(2)]-9n+7=0 ?

Asked by Keshav pradhan 13th February 2014, 9:13 PM
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