ABCD Is A Rectangular Figure, Joining A, C Let Us Prove That–(i)tan∠ACD=cot∠ACB (ii)cotβ+cosβ=(cosβ/cosα)(1+sinβ) - ConceptEra

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ABCD is a rectangular figure, joining A, C let us prove that–(i)tan∠ACD=cot∠ACB (ii)cotβ+cosβ=(cosβ/cosα)(1+sinβ)

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