Let’s look at how to use trigonometric identities to calculate missing sides. \({sin~θ} = \frac {opposite} {hypotenuse}\) \({cos~θ} = \frac {adjacent} {hypotenuse ...

This circle has the centre at the origin and a radius of 1 unit. The point P can move around the circumference of the circle. At point P the \(x\)-coordinate is \(\cos{\theta}\) and the \(y ...

1) -1 and 1 2) -1≤x≤1 3) (-∞,-1] ∪ [1,∞) 4) Φ Q: 2 Given: tan⁻¹√1+tan2 θ x sin ... since the domain of the sine function is (-∞,∞), sin⁻¹ x is well defined in the domain ...