Prove that : sinA/secA+tanA-1 + cosA/cosecA+cotA-1 =1
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sec=1/sin cosec=1/cos cot=1/tan=cos/sin sina/1/sina+cosa/sina-1+cosa/1/cosa+cosa... 1. sin^2a+sina/cosa+cosa/sina-1+cos^2a+1=1
(sin^2a+cos^2a)+(sin^2a+cos^2a)/coasin...
1+(cos^2a+sin^2a-1=1
1-1+(sin^2a+cos^2a=1sin^2a+cos^2a=1.
(sin^2a+cos^2a)+(sin^2a+cos^2a)/coasin...
1+(cos^2a+sin^2a-1=1
1-1+(sin^2a+cos^2a=1sin^2a+cos^2a=1.
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