# Math Help - prove

1. ## prove

If A , B and C are an angles from the triangle ABC,
Show that :
4≤csc2A + csc2B + csc2C

2. ## Re: prove

Are you familiar with Lagrange multipliers, i.e., optimization with constraint?

3. ## Re: prove

Originally Posted by MarkFL2
Are you familiar with Lagrange multipliers, i.e., optimization with constraint?