Correct: tan Ɵ = 1/ cot Ɵ, sin Ɵ = opposite / hypotenuse, tan(300) = 1/√3, 1 + cot2Ɵ = cosec2Ɵ, cos900 = 1, Incorrect: tan Ɵ = 1 / sin Ɵ, cos Ɵ = opoosite / adjacent, tan(300) = √3, sin 450 = 1, sin600 = 0 ,

Trigonometry : Whack-a-mole..

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