Tan 90 Degrees (Exact Value & How to Find Tangent 90)
Example: Find the value of tan(90-45)° Answer:We know, tan(90-θ )=cotθ ∴ tan(90-45)=cot 45° And cot 450=1 So, tan(90-45)°=1 Example:Show that tan 3x.tan 2x.tanx= tan 3x-tan 2x-tan x Answer:We can write, 3x=2x+x ...