1.

Find the principal values of each of the following:(i) tan-113(ii) tan-1-13(iii) tan-1cosπ2(iv) tan-12cos2π3

Answer» Find the principal values of each of the following:



(i) tan-113

(ii) tan-1-13



(iii) tan-1cosπ2



(iv) tan-12cos2π3


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