tan B = 8/3, sin B????????

Trigonometri

tan B = 8/3 = y/x
misal x = 3, y  = 8

r² = x² + y²
r² = 3² +8²
r² = 73
r = √73

sin B =  y/r = 8/√73 = ⁸/₇₃ √73

ini jawabannya, semoga membantu :)