WAEC Mathematics 2018 Objective — Question 24
Question 24 of 50 from the West African Examinations Council (WAEC) Mathematics 2018 Objective paper, with the correct answer and a full explanation.
Advertisement
If tan x = 4/3, 0° < x < 90°, find the value of sin x − cos x.
- A. 1/10
- B. 1/5Correct
- C. 5/12
- D. 1⅕
Explanation
For a 3-4-5 triangle, sinx=4/5, cosx=3/5, so sinx−cosx=1/5.
Advertisement
Sign up free to unlock
- Score tracking
- Practice history
- Saved questions
- Progress dashboard
- Personalized sessions
- Weak-topic breakdown
…and/or go further with premium services and No Ads.