If x, xy , `xy^(2), xy^(3)`, …………. Forms a G.P., then its `15^(th)` term is

If p,pq,pq^2,pq^3…. forms of G.P. Then its 20^(th) term is

If the 5th term of a G.P. is 16 and the 10th term is 1/2 then its 15th term is

The factors of the term - xy^2 are

The sides of a triangle are x^(2) - 3xy + 8, 4x^(2) + 5xy - 3 and 6 - 3x^(2) + 4xy . Find its perimeter.

If x:y::5:2, then (x ^(2) - xy + y ^(2))/( x ^(2) + xy + y ^(2)) = ?

The 4^(th) term of a G.P. is square of its 2^(nd) term . If the first term is -3 find the 7^(th) term of the G.P.

If the xth term of an A.P. is (1)/(y) and its yth term is (1)/(x) then show that its xyth term is 1 and the sum of its first xy terms is (1)/(2)(xy+1) .