Anonymous asked in Computers & InternetSecurity · 9 years ago

Verify each identity?

Please help! I've tried each of these so many times.

((cot)/(1+csc))+((1+csc)/(cot))=2 sec


1 Answer

  • Anonymous
    9 years ago
    Favorite Answer

    Several Chinese province names are portmanteau words: Anhui is a contraction of Anqing and Huizhou, Fujian is a contraction of Fuzhou and Jianzhou (ancient name of Jian'ou), Gansu is a contraction of Ganzhou and Suzhou, and Jiangsu is a contraction of Jiangning (ancient name of Nanjing) and Suzhou.

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