Question

If A+B+C=0; prove Sin2A+sin2B+sin2C=-4SinA. SinB.SinC​, please solve and grab 20 points ​

Answer 1

Answer:

Step-by-step explanation:

Answer 2

Answer:

While you might think that college gymnasts might train almost just as much as Olympic and elite gymnasts do, the truth of the matter is that while most elite gymnasts train around 40 hours per week, college gymnasts only train 20 hours a week.