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Abdulramon
Answers (1)
Third term = T3 Sixth term = T6 Tn = ar^n-1 T3=ar^2=108 ar^2=108_ _ _ _(1) T6=ar^5=-32 ar^5=-32_ _ _ _(2) divide eqn (2) by (1) ar^5/ar^2=-32/108 r^3=-8/27 Cuberoot b.s r=-2/3 Substitute r into eqn (1) a(-2/3)^2=108 a×4/9=108 a=108×9/4=27×9=243 Sum of
