If in Figure `tan(/_B A O)=3,` then find the ratio `B C : C Adot`

In Figure, A B=A C\ a n d\ D B=D C , find the ratio /_A B D\ :\ /_A C D

If a= 2b/3, b= 2c/3, and c=2d/3, then find the ratio of b and d:

In Figure, O is the centre of the circle. Find /_B A C

In Figure, O is the centre of the circle. Find /_C B D

In Figure, /_\ A B C and /_\ D B C are on the same base B C . If A D and B C intersect at O , prove that (A r e a\ ( A B C))/(A r e a\ ( D B C))=(A O)/(D O) .

If A+B+C=pi , then, find tan A + tan B + tan C

If A+B+C=pi , then, find tan A + tan B + tan C

In Figure, if /_A O B=80^0a n d\ /_A B C=30^0, then find /_C A O

If a : b = 3 : 2 " and " b : c = 3 : 2 , then find the value of the ratio (a + b) : (b + c) .