Prove [CosA- SinA.CosA/CosA+ SinA.CosA]=[CosecA-1/CosecA+1] , Class10, Mathematics, trigonometry

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Prove [CosA- SinA.CosA/CosA+ SinA.CosA]=[CosecA-1/CosecA+1] , Class10, Mathematics, trigonometry

Prove [CosA- SinA.CosA/CosA+ SinA.CosA]=[CosecA-1/CosecA+1] , Class10, Mathematics, trigonometry