Prove that sinA/cotA+ cosecA - sinA/cotA-cosecA = 2

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sinA/cotA+ cosecA - sinA/cotA-cosecA = 2

cota-tana=2cos2a-1/sinacosa

1/coseca-cota-1/sina=1/sina-1/coseca+cota

(sina+cosa)(seca+coseca)=2+seca coseca

cota+coseca-1/cota-coseca+1=1+cosa/sina

cosa/1-tana+sina/1-cota=sina+cosa

√seca-1/seca+1+√seca+1/seca-1=2coseca

1-sina/coseca+cota 1-sina/coseca+cota

prove that root seca-1/seca+1
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