cos(θ) = ³/₅
cos⁻¹[cos(θ)] = cos⁻¹(³/₅)
θ ≈ 53.13
sin(θ) > 0
sin(53.13) > 0
0.8 > 0
1. tan(θ)
tan(53.13)
1¹/₃
The answer is A.
2. sec(θ)
sec(53.13)
1²/₃
The answer is A.
3. cot(θ)
cot(53.13)
³/₄
The answer is B.
4. csc(θ)
csc(53.13)
1¹/₄
The answer is C.
