cosec 90 – theta minus sin 90 minus theta into cos theta minus sin theta into 10 theta + cot theta is equal to 1​

1 thought on “cosec 90 – theta minus sin 90 minus theta into cos theta minus sin theta into 10 theta + cot theta is equal to 1​”

1. Answer:

   sin(90

   o

   −θ)=cosθ, cos(90

   o

   −θ)=sinθ,

   cosec(90

   o

   −θ)=secθ, cot(90

   o

   −θ)=tanθ,

   sec(90

   o

   −θ)=cosecθ, tan(90

   o

   −θ)=cotθ

   ∴

   cosec(90−θ)sin(90−θ)cot(90−θ)

   cos(90−θ)sec(90−θ)tanθ

   +

   cotθ

   tan(90−θ)

   ∴

   sin(90−θ)

   1

   ×sin(90−θ)×tanθ

   sinθ×

   cos(90−θ)

   1

   ×tanθ

   +

   cotθ

   cotθ

   =

   cosθ

   1

   ×cosθ

   sinθ×

   sinθ

   1

   +1

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