Question

given sec (theta) = 3 what is the exact value of csc (90 - (theta))

Answer 1

sec θ = 3
1/cos θ = 3
cos θ = 1/3

csc (90 - θ) = 1/sin (90 - θ) = 1/cos θ = 1/(1/3) = 3

Therefore, csc (90 - θ) = 3.