11th Class
Mathematics
Sample Paper
Maths Olympiad Model Test Paper-12
question_answer
The sum of infinite terms of a decreasing G.P. is equal to the greatest value of the function \[f(x)={{x}^{3}}+3x-9\] in the interval \[\left[ -\,2,3 \right]\] and the difference between the first two terms is f'(0). Then, the common ratio of a G.P. is