in a binomial expansion (x+a),the first three terms are 1,56,1372 respectively,find the values of a and x.
We know,
First term,
Second term,
Third term,
As, n ≠ 0, so n = 8
Hence, a = 7 and x = 1
in a binomial expansion (x+a),the first three terms are 1,56,1372 respectively,find the values of a and x.
We know,
First term,
Second term,
Third term,
As, n ≠ 0, so n = 8
Hence, a = 7 and x = 1