prove that 1 + Cos A divided by sin a + sin a divided by 1 + cos A is equal to cosecant a
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Step-by-step explanation:
1+Cosa/sina +sina/1+Cosa
=(1+Cosa)^2+sin^2a/(1+Cosa)sina
=1+2cosa+cos^2a+sin^2a/(1+Cosa)sina
=2(1+cosa)/(1+Cosa)sina
=2/sina
=2coseca
Hope it helped u
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