logsinθ(sec²θ-1)
= logsinθ(tan²θ)
= 2logsinθ(tanθ)
= 2logsinθ(sinθ/cosθ)
= 2[1-logsinθ(cosθ)]
= 2[1-1/logcosθ(sinθ)]
= 2(1-1/2)
= 1
logsinθ(sec²θ-1)
= logsinθ(tan²θ)
= 2logsinθ(tanθ)
= 2logsinθ(sinθ/cosθ)
= 2[1-logsinθ(cosθ)]
= 2[1-1/logcosθ(sinθ)]
= 2(1-1/2)
= 1