1) sinθ=-1, find secθ.
2) cscθ=1, find cosθ.
3) sinθ=-1, find cotθ.
4) sinθ=-1, find cosθ.
5) sinθ=-1, find cscθ.

1.      sin(θ) = -1
sin⁻¹(sin(θ)) = sin⁻¹(-1)
                θ = -90
sec(θ) = sec(-90) = undefined number

2.       csc(θ) = 1
csc⁻¹(csc(θ)) = csc⁻¹(1)
                 θ ≈ 57.3
cos(θ) = cos(57.3) ≈ 0.54

3.      sin(θ) = -1
sin⁻¹(sin(θ)) = sin⁻¹(-1)
                θ = -90
cot(θ) = cot(-90) = undefined number

4.      sin(θ) = -1
sin⁻¹(sin(θ)) = sin⁻¹(-1)
                θ = -90
cos(θ) = cos(-90) = 0

5.      sin(θ) = -1
sin⁻¹(sin(θ)) = sin⁻¹(-1)
                θ = -90
csc(θ) = csc(-90) = -1

Bis your answer. it only holds the decimal numerals