Binomial Theorem and Its Simple Applications: JEE Main 2020 Mathematics question

JEE Main 2020 · 2 Sep, Evening shift · Q20

JEE Main 20202 Sep, Evening shiftMathematicsMediumBinomial Theorem and Its Simple Applications131× since 2002

For a positive integer n,

{\left( {1 + {1 \over x}} \right)^n}

is expanded in increasing powers of x. If three consecutive coefficients in this expansion are in the ratio, 2 : 5 : 12, then n is equal to________.

Your answerType your answer. Integers and decimals are accepted.

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JEE Main 2020 Binomial Theorem and Its Simple Applications Question with Answer (2 Sep Evening shift, Q20) | JEE Arc

JEE Main 2020 · 2 Sep, Evening shift · Q20

JEE Main 20202 Sep, Evening shiftMathematicsMediumBinomial Theorem and Its Simple Applications131× since 2002

For a positive integer n,

{\left( {1 + {1 \over x}} \right)^n}

is expanded in increasing powers of x. If three consecutive coefficients in this expansion are in the ratio, 2 : 5 : 12, then n is equal to________.

Your answerType your answer. Integers and decimals are accepted.