Question

the common ratio of g.p .1-1/3+1/9_1/27+.......

Answer 1

common ratio = 2nd term/first term = 3rd term/2nd term=................................

2nd term = -1/3

first term = 1

common ratio = -1/3

''Hope this is helpful''

Answer 2

x _1-1 /3+1/9... 3x_3+1+1/3+1/9-...... so. 3x_x+3 2x_3. x_1.5