Question

prove csc(-630)=1

Answer 1

just simplify it or use scientific calculator

Answer 2

i want know how to do it by hand

Answer 3

do I break it down in terms of sin and cos?

Answer 4

cosec = 1/sin.

Here, -630 = -360-270. I forget, but you can I think just write it as cosec(-270) and then as -cosec(270). That would make it equal 1.

Answer 5

oh sick thank you so much