Q18 | Prove that cos square theta plus 1 by 1 + cot square theta = 1 | cos^2θ + 1/(1 + cot^2θ) =1
Q19 | Prove that 1 by 1 + tan square theta plus 1 by 1 + cot square theta = 1 | 1/(1+tan^2θ)+1/(1 +
root ( 1 - cos theta )/(1+cos theta) = cosec theta - cot theta | Trigonometry class 10
Q31 | Prove that 1 + cot^2θ/(1 + cosecθ) = cosecθ | Prove that 1 + cot square theta by 1 + cosec
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Q20 | Prove that cot square theta - 1 by sin square theta = -1 | prove that cot^2θ - 1/sin^2θ = -1
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