2019 · Q60
Consider the following for real numbers α, β, γ and δ:
- 1sec α = 1/4
- 2tan β = 20
- 3cosec γ = 1/2
- 4cos δ = 2
How many of the above statements are not possible?
Elementary MathematicsTrigonometry
- AOne
- BTwo
- CThree
- DFour
Explanation
sec α = 1/4 needs cos α = 4 (impossible); tan β = 20 is fine; cosec γ = 1/2 needs sin γ = 2 (impossible); cos δ = 2 is impossible. Three of the four statements are not possible.