Checkout JEE MAINS 2022 Question Paper Analysis : Checkout JEE MAINS 2022 Question Paper Analysis :

sec-1 (sec (- 30o)] =

1) – 60o

2) – 30o

3) 30o

4) 150o

Solution: (3) 30o

sec-1 (sec (- 30o)]

= sec-1 (sec 30o)

= 30o

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