Question

cos inverse cos(5π÷2)​

Answer 1

cos -^1 cos(5π/2)

5π/2

or 0 it wil.help u

Answer 2

Answer:

Step-by-step explanation:

cos(5pi/2)

cos(5*90)

cos(2pi-(5*90))

cos(90)

therefore cos inverse of cos 90 = 90 degrees