Question

h
1+ 3x + 5x² + 7x³+ .... +enth
upto
in terms​

Answer 1

Answer:

Sum 1 + 3x + 5x^2 + 7x^ 3 ... Sum 1+3x+5x2+7x3+9x4+.... to infinity. ... If the lth ,mth and nth term of G.P. are a, b and c ...

Missing: 7x³+ ‎+enth

Let S = 1 + 3x + 5x^2 + 7x^3......∞ Multiplying both sides by a , we get Sx = 0 + x + 3x^2 + 5x^3.......∞ Subtract both eqns, we get S(1 - x) = 1 ...