Question

what is the inverse sin of sin(2pi/3)?

Answer 1

inverse sin and sin are just reverse of each other. Its like saying whats x times 2 divide bvy 2? well, its x. They undo themselves. So if you have 2pi/3 and you take the sin of it then take the inverse sin of it, youve just reversed the process, its simply 2pi/3. The operations cancel themselves out.