1.

Which of the following is highest? `(a) " cosec " 1" "(b) " cosec " 2` `( c ) " cosec " 4" "(d) " cosec " (-6)`

Answer» Consider sin 1, sin 2 and -sin 6 (sin 4 is negative, hence cosec 4 cannot be maximum).
Form the graph, sin (-6) is the least positive value, hence cosesc (-6) is maximum.


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