If the sides `a,b,c` of a triangle are in G.P. and largest angle exceeds the smallest by `60^@`,then `cos B=`

In Delta ABC , if the sides a,b,c are in geometric progression and the largest angle exceeds the smallest angle by 60^@ , then cos B .

If the sides of a triangle are in G.P., and its largest angle is twice the smallest, then the common ratio r satisfies the inequality

If the sides of a triangle are in G.P., and its largest angle is twice the smallest, then the common ratio r satisfies the inequality 0

If the sides of a triangle are in G.P., and its largest angle is twice the smallest, then the common ratio r satisfies the inequality 0

If the sides of a triangle are in G.P., and its largest angle is twice the smallest, then the common ratio r satisfies the inequality 0

If the sides of a triangle are in G.P.,and its largest angle is twice the smallest,then the common ratio r satisfies the inequality 0

If the sides of a triangle are in A.P. and the greatest angle of the triangle exceeds the least by 90^(@) , then sine of the third angle is

If the sides of a triangle are in A.P. and the greatest angle of the triangle exceeds the least by 90^(@) , then sine of the third angle is

If the sides of a triangle are in GP and the largest angle is twice the smallest angle, then find the ralation for r.

In Delta ABC , if the sides a, b, c are in geometric progression and the largest angle exceeds the smallest angle by 60^(@) , then cos B =