Question

plz koi solve krdooooo plz​

Answer 1

Answer:

Step-by-step explanation:

In ∆ ABC ,

Sin A= 3/4

I.e,BC/AC= 3/4

i.e,BC= 4k and AC= 3k where k is constant of proportionality.

By Pythagoras theorem,

AB²=AC²-BC²= (4 k)²-(3k²)

Or,AB= √(16-9)k= √7k

hence,tan a= BC/AB= 4K/√7K= 4/√7