226k views
4 votes
Which expression is equal to -1?

Which expression is equal to -1?-example-1

2 Answers

4 votes

Answer:

Choice C : sin 3π/2

Explanation:

correct on edge

User MonOve
by
7.5k points
1 vote

Answer:

c or the 3d one

Explanation:

User Davit Tvildiani
by
7.4k points