Question 1: if the arithmetic mean of two numbers is twice of their geometric mean, their ratio of sum of numbers to the difference of numbers equals?
Question 2: if the quadratic equation:
$(b^2+c^2)x2-2(a+b)cx+(c^2+a^2)=0$
has equal roots then?what is its AP & GP?
Question 3: If the expansion of:
$(1+x)^{50}$
let S be the sum of the coefficient of the odd power of x, then S will be?
Please help with this problems in brief. -Thanks.