write 5 identities of trignometry?
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1. sin^2theta + cos^2theta = 1
2. 1 + tan^2theta= sec^2theta
3. 1 + cot^2theta= cosec^2theta
4. tantheta= sintheta/costheta
5. cottheta= costheta/sintheta
6. tantheta x cottheta= 1
2. 1 + tan^2theta= sec^2theta
3. 1 + cot^2theta= cosec^2theta
4. tantheta= sintheta/costheta
5. cottheta= costheta/sintheta
6. tantheta x cottheta= 1
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