Using binomial theorem, prove that `2^(3n)-7^n-1` is divisible by `49` , where `n in Ndot`

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This is the Solution of Question From RD SHARMA book of CLASS 11 CHAPTER BINOMIAL THEOREM This Question is also available in R S AGGARWAL book of CLASS 11 You can Find Solution of All Question From RD SHARMA and R S AGGARWAL book from class 6-12 on our app DOUBTNUT for Free

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==== QUESTION TEXT ====

Using binomial theorem, prove that `2^(3n)-7^n-1` is divisible by `49` , where `n in Ndot`

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last me (7-7n)*n to 7-7nsquare hona chaiye to 7n-7n kaise cancel ho gye please ise theek karo

smritinegi
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Sir, please solve this, proof that 9^7+7^9 divided by 64

hiteshpatel
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