Question

If sec4a = cosec60° find a​

Answer 1

sec and cosec are complementary angles  that is (sec a)=cosec(90-a)

substituting the values in   the equation  so we get

cosec(90-4a)=cosec60

90-4a=60

4a =30

a=30/4=15/2=7.5

hope it helps you