# NCERT Class 12-Mathematics: Chapter – 2 Inverse Trigonometric Function Part 11 (For CBSE, ICSE, IAS, NET, NRA 2022)

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## Long Answer (L. A.)

**Question 12**:

Prove that

**Answer**:

**Question 13**:

Find the simplified form of

**Answer**:

Given that:

**Question 14**:

Prove that

**Answer**:

LHS