May 2021 5 25 Report
¿Me podrían ayudar a demostrar las siguientes identidades trigonometricas?

1. cosA[secA-(cotA/cosecA)=sin^2A

2. 2secA= (1/secA+tanA) + (1/secA-tanA)

3. tanA+cotA=secAcosecA

4. sinA[(tanA/secA)-cosecA)=-cos^2A

5. tanA(1+cot^2A)/1+tan^2A=cotA

6. cscA+secA/1+tanA=cosecA

7. sec^2Acot^2AtanA=cosecAsecA

8. 1/tanA+cotA=cosAsenA

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