Question

If angles A, B, C of a AABC form an increasing AP,
creasing AP, then sin B =​

Answer 1

Answer:

(root3) /2

Step-by-step explanation:

As A, B, C are in AP

2B = A+ C

3B = A+B + C = 180 adding B to both sides

so, B = 60 deg

so SinB = Sin60 deg = (root3)/2 = (3^1/2)/2