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MathsMediumMCQ2016 ยท 10 Apr Online

Q66.If the coefficients of xโˆ’2 and xโˆ’4 , in the expansion of 3 18 + 1 1 , (x > 0) , are m and n respectively, then (x 2x 3 ) m is equal to n (1) 27 (2) 182 (3) 54 (4) 54

What This Question Tests

Tests the application of the binomial theorem to find specific terms with given powers of x and then calculate the ratio of their coefficients.

Concepts Tested

Binomial expansionGeneral term formulaEquating powers of x

Formulas Used

T_{r+1} = nCr * a^(n-r) * b^r

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