A trigonometric identity: 1 + (cot^2 alpha) / (1 + cosec alpha) = cosec alpha.

Q6 of 120 Page 95

1+

L.H.S:

(3-cot30⁰)=tan³60⁰-2sin60⁰

tan θ +tan (90⁰- θ) = sec θ sec (90⁰- θ)

Questions · 120

8. Introduction to Trigonometry and Its Applications

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