Prove that:
To Prove: 
Formula Used: 
Proof:
LHS 
= tan-1 1
= RHS
Therefore LHS = RHS
Hence proved.
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4. Inverse Trigonometric Functions
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1 B
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3 A
3 B
3 C
3 D
4 A
4 B
4 C
4 D
5 A
5 B
5 C
6 A
6 B
6 C
6 D
6 E
6 F
6 G
6 H
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7 B
7 C
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7 F
7 G
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8 B
8 C
8 D
8 E
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9 B
9 C
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