If sinxcos(pi/7)-sin(pi/7)cosx=-sqrt2/ 2 then x can equal?

What kinds of numbers make up the set of numbers called the real numbers? give examples when you explain a number type. there are a limited set of types of numbers, but an unlimited number of examples of these numbers.

What is the solution to the equation in the & show work i’m very

If olu is twice as old as funmi if the sum of their ages is 60 how old is olu