In the expansion of `(x+y)^(n)` , if the exponent of x in second term is 10, what is the exponent of y in 11th term.

In the 10th term of (x+y)^(n) , the exponent of x is 3, then the exponent of x in the 7th term is __________

In the 8thb term of (x+y)^(n) , the exponetnt of x is 3, then the exponent of x in 5th term is ____________

In the expansion of (x+y)^(n) ,if the binomial coefficient of the third term is greater by 9 then that of the second term,then the sum of the binomial coefficients of the terms occupying to odd places is

In the expansion of (2x+y)^(15) ,the indices of x and y in the 8th term are respectively -

In the expansion of (X+y)^(n) , the coefficients of the 17th and the 13th terms equal. Find the numbher of term in the expansion

In the expression of (x+y)^(123) , the sum of the exponents of x and y in 63 rd term is __________

In the expansion of (2-3x^3)^(20) , if the ratio of 10^(th) term to 11^(th) term is 45/22 then x=

Second term in the expansion of (2x+3y)^(5)=