Respuesta :
I got: cos²θ - sinθ
Does this seem familiar?
Work:
cosθ/secθ - tanθ
cosθ/1/cosθ - sinθ/cosθ
cosθ/1 * cosθ/1 - sinθ/cosθ
cos²θ/1 - sinθ/cosθ
cos³θ-sinθ/cosθ
cos²θ-sinθ
Does this seem familiar?
Work:
cosθ/secθ - tanθ
cosθ/1/cosθ - sinθ/cosθ
cosθ/1 * cosθ/1 - sinθ/cosθ
cos²θ/1 - sinθ/cosθ
cos³θ-sinθ/cosθ
cos²θ-sinθ