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Consider the following I. sin^2 1^@+ ...

Consider the following
I. `sin^2 1^@+ cos^2 1^@ =1`
II. `sec^2 33^@ -cot^2 57^@ = cosec^2 37^@ - tan^2 53^@`
Which of the above statement is/are correct ?

A

1 only

B

2 only

C

Both 1 and 2

D

Neither 1 nor 2

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