" If "x,y,z" are in A.P and "tan^(-1)x," tan "^(-3)y" and "tan^(-4)z" are also in A.P,then : "

If x,y,z are in A.P. and tan^(-1)x , tan^(-1)y and tan^(-1) z are also in A.P., then :

If x,y,z are in A.P. and tan^(-1) x , tan^(-1) y and tan^(-1) z are also in A.P. then :

If x,y,z are in A.P. and tan^(-1)x, tan^(-1)y and tan^(-1)z are also in A.P. then

If x,y , z are in AP and tan ^(-1) x, tan ^(-1) y and tan ^(-1) z are also in AP, then :

If x,y,z are in A.P and Tan^(-1) x, Tan^(-1) y and Tan^(-1) z are also in A.P., then

If x, y, z are in A.P. and tan^(-1) x, tan^(-1) y and tan^(-1)z are alos in A.P. then

If x, y, z are in A.P. and tan^(-1) x, tan^(-1) y and tan^(-1)z are alos in A.P. then

If x, y and z are in AP and tan^(-1) x, tan^(-1) y " and " tan^(-1) z are also in AP, then

If x, y, z are in A.P. and tan^(-1)x , tan^(-1)y and t a n^(-1)z are also in A.P., then (1) 2x""=""3y""=""6z (2) 6x""=""3y""=""2z (3) 6x""=""4y""=""3z (4) x""=""y""=""z