Question

sin 21 degree 30 minute/cos 68 degree 3 minute?​

Answer 1

Step-by-step explanation:

I think it should be cos 68⁰30 minutes

then we can write cos 68⁰30minutes as cos ( 90 - 21⁰30') = sin21⁰30'

sin21⁰30'/ sin21⁰30' = 1