Explanation
tanθ = 3/4
from Pythagoras tippet, the hypotenus is T
i.e. 3, 4, 5.
then sin θ = 3/5 and cosθ = 4/5
cosθ - sinθ
4/5 - 3/5 = 1/5
tanθ = 3/4
from Pythagoras tippet, the hypotenus is T
i.e. 3, 4, 5.
then sin θ = 3/5 and cosθ = 4/5
cosθ - sinθ
4/5 - 3/5 = 1/5