1.

Cosec Acosec Acosec A -1+2 sec2 Acosec A +1

Answer»

3 cosec A -1+ 2 sec square A .cosec A +1

= 3 ( COT square thita) -1+2 (1+ tan square thita ) . √ 1+ cot square thita +1

= 3( COS A / SIN A )-1+2 .1 ( sin A / cos A) √1 + cos A / sin A +1

3.-1+2.1.√1 + cos A / sin A +1

3+2.1 ( cot thita )

5.1 ( cot thita)

5 cot theta



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