Can you express sin(Θ) as a function of cos(Θ)Determine the values of sin 2θ , cos 2θ and tan 2θ , given cosθ = − 4/5 and π/2 ≤θ ≤ π
we just learned this in class and im confused how to solve it
yes or at least i have been doing itCan you express sin(Θ) as a function of cos(Θ)
What is that function?yes or at least i have been doing it
Do you recall the following relation:i havent done this question because I have no idea how to do it my class examples dont help
π/2 ≤θ ≤ π implies that π ≤ 2θ ≤ 2π (I just doubled all 3 sides) So 2θ is in quadrant 3 and 4.Determine the values of sin 2θ , cos 2θ and tan 2θ , given cosθ = − 4/5 and π/2 ≤θ ≤ π
we just learned this in class and im confused how to solve it