Make q the subject of the formula

What basic trigonometric identity would you use to verify that csc x sec x cot x = csc^(2)x

Hii1977 cleaner shrimp are a species of shrimp that clean parasites from other organisms. fish allow the shrimp to eat the parasites in their mouth. the shrimp get a source of nutrition. the relationship between the shrimp and the fish is this association indicates that for the smaill aneser arecommensal,mutualistic,or parasitic for the begger one the anser are the shrimp and fish benefit each other , the shrimp harm the fish, or the fish do not benetit from the shrimp

Two times a number plus three times another number equals 4. three times the first number plus four times the other number is 7. find the numbers