If the coefficients of x7& x8 in the expansion of [2+x/3]n are equal then the value of n is???
If the coefficients of x7& x8 in the expansion of [2+x/3]n are equal then the value of n is???
Mostafijur Rahaman , 11 Years ago
Grade 12
Algebra> If the coefficients of x 7 & x 8 in the e...
1 Answers
Sourabh Singh
(2)7(1/3)n-7 =![[\binom{N}{8}]](https://files.askiitians.com/cdn1/cms-content/common/latex.codecogs.comgif.latex_binomn8.jpg)
(2)8(1/3)N-8 Use this equation to solve the question for the asked value of N.A linear equation will be formed in n WHICH WILL BE VERY EASY TO SOLVE .
Approved Last Activity: 11 Years ago
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