Question

a + b + c = 90° then sin 2A + sin 2B + sin 2c = ​

Answer 1

Answer:

3√3/2

Step-by-step explanation:

let a = b = c = 30°

the sin 2a = sin 2b = sin 2c = sin 60°= √3/2

then adding them √3/2 + √3/2 +√3/2 = 3√3/2