1.

For the principal values, evaluate the following:(i) sin-1-32+cosec-1-23(ii) sec-12+2cosec-1-2(iii) sin-1cos2cosec-1-2(iv) cosec-12tan11π6

Answer» For the principal values, evaluate the following:



(i) sin-1-32+cosec-1-23

(ii) sec-12+2cosec-1-2

(iii) sin-1cos2cosec-1-2

(iv) cosec-12tan11π6


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