Q21. If tan θ = ½ and the terminal side of angle θ is in the first quadrant, what is the value of cos θ?Mathematics — NUST Mock 9 — Question 21 of 200A. ⅔B. ⅚C. 2/√5D. None of the abovePractice more Mathematics MCQs for entrance exam preparation on Examora.io.← Previous Question Next Question →