Question

The Nutty Professor sells cashews for $7.40 per pound and Brazil nuts for $4.80 per pound. How much of each type should be used to make a 28 pound mixture that sells for $6.19 per pound?

Answer 1

cos4B =1-8sin^2(B)+8sin^4(B)

Explanation:

cos4B =1-8sin^2(B)+8sin^4(B)