Thanks for your postings. I'm amazed at how much of pickle my teenage children's homework has gotton me into. Still, it has revitalized my interest in mathematics.
This has been bugging me
Can somebody help me. This problem (max of L=a/sinx + b/cos x) has been bugging me for about a year. I knew how to do it 25 years ago and it seemed to involve using tanx/2 substitutions and the tan half angle formula for cot. Why is the max of a/sin x+ b/cos x when...