The number of values of ` r` satisfying the equation, `39C_(3r-1)-39C_(r^2) = 39C_(r^2-1)-39C_(3r)` is :

Number of values of r satisfying the equation ,^69C_(3r-1) -^(69)C_(r^2)=^69C_(r^2-1)-^69C_(3r) is

The number of values of r satisfying the equation ""^(39)C_(3r-1) -""^(39)C_(r^2) = ""^(39)C_(r^2-1) -""^(39)C_(3r) is

The number of values of 'r' satisfying the equation ""^(39)C_(3r-1)- ""^(39)C_(r^(2) )= ""^(39)C_(r^(2)-1) - ""^(39)C_(3r) is

The number of values of 'r' satisfying the equation ""^(39)C_(3r-1)- ""^(39)C_(r^(2) )= ""^(39)C_(r^(2)-1) - ""^(39)C_(3r) is

The number of values of 'r' satisfying the equation ""^(39)C_(3r-1)- ""^(39)C_(r^(2) )= ""^(39)C_(r^(2)-1) - ""^(39)C_(3r) is

The number of values of r satisfying the equation 69C_(3r-1)-69C_(r^(2))=^(69)C_(r^(2)-1)-6 is a.1 b.2 c.3d.7

The number of values of r satisfying the equation C(69,3r-1)-C(69,r^(2))=C(69,r^(2)-1)-C(69,3r) is (A)1(B)2(C) 3( textrmD ) 7

Find the value (s) of r satisfying the equation ^69C_(3r-1)-^(69)C_(r^(2))=^(69)C_(r^(2)-1)-^(69)C_(3r)

Find the value (s) of r satisfying the equation ^69 C_(3r-1)-^(69)C_(r^2)=^(69)C_(r^2-1)-^(69)C_(3r)dot