If sec θ is 5/4 then, what is the value of cos θ?
Answer: If sec θ is 5/4 then the value of cos θ is 4/5
From the given data, sec θ = 5 / 4
We have to find the value of cos θ.
According to the trigonometric formula, we know that cos θ = 1 / sec θ
On substituting the value of sec θ in the above equation, we get
cos θ = 1 / sec θ
= 1 / (5 / 4)
= 4 / 5