3) Find the exact value of tanπ/10 + tanπ/15 / 1- tanπ/10 tanπ15
4) prove the identity cosθ - sinθ / cosθ + sinθ = sec2θ - tan2θ
5) What is the solution to the equation cos2X + 2 = sinX for 0° ≤ X ≤ 360°
6) Determine the value of cosθ (sinθsecθ + tanθ / secθtanθ) if sinθ=
13/85 and cosθ = 84/85
i kinda found out how to do the first one i don't know if its right
tan (π/10 + π/15) =
tan ( 3π/30 + 2π/30) =
tan ( 5π/30) =
tan π/6 =
√3 / 3
can you help me with the rest of the questions please?
4) prove the identity cosθ - sinθ / cosθ + sinθ = sec2θ - tan2θ
5) What is the solution to the equation cos2X + 2 = sinX for 0° ≤ X ≤ 360°
6) Determine the value of cosθ (sinθsecθ + tanθ / secθtanθ) if sinθ=
13/85 and cosθ = 84/85
i kinda found out how to do the first one i don't know if its right
tan (π/10 + π/15) =
tan ( 3π/30 + 2π/30) =
tan ( 5π/30) =
tan π/6 =
√3 / 3
can you help me with the rest of the questions please?