** ** **NCERT Solutions for Maths Class 12 Exercise 2.1**

Hello Students! Welcome to **maths-formula.com**. In this post, you will find the complete** ****NCERT Solutions for Maths Class 12 Exercise 2.1**.

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Class 12th is a very crucial stage of your student’s life, since you take all important decisions about your career on this stage. Mathematics plays a vital role to take decision for your career because if you are good in mathematics, you can choose engineering and technology field as your career.

**NCERT Solutions for Maths Class 12 Exercise 2.1** helps you to solve each and every problem with step by step explanation which makes you strong in mathematics.

All the schools affiliated with CBSE, follow the NCERT books for all subjects. You can check your syllabus from **NCERT Syllabus for Mathematics Class 12**.

**NCERT Solutions for Maths Class 12 Exercise 2.1** are prepared by the experienced teachers of CBSE board. If you are preparing for JEE Mains and NEET level exams, then it will definitely make your foundation strong.

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**NCERT Solutions for Maths Class 12 Exercise 2.2**

**NCERT Solutions for Maths Class 12 Exercise 2.1**

**Maths Class 12 Ex
2.1 Question 1 – 10.**

**Find the principal values of the following:**

**1.**

**2.**

**3.**

**4.**

**5.**

**7.**

**8.**

**9.**

**10.**

The range of the principal values of sin^{-1} is (–Ï€/2, Ï€/2).

**Maths Class 12 Ex
2.1 Question 11 – 12.**

**Find the values of the following:**

**11.**

We have tan^{-1} (1) = Ï€/4

Since
the range of
principal value of cos^{-1} is [0, Ï€].

**Maths Class 12 Ex
2.1 Question 13.**

**If sin**

^{-1}x = y, then**(A) 0 ≤ y ≤ Ï€**

**(B)**

**Solution:**

The range of principal value of sin^{-1 }is (–Ï€/2, Ï€/2).

Therefore, if sin^{-1} x = y, then

Hence, option (B) is correct.

**Maths Class 12 Ex
2.1 Question 14.**

**is equal to**

**(A) Ï€**

**(B) –**

**Ï€/3**

**(C)**

**Ï€/3**

**(D) 2**

**Ï€/3**

**Solution:**

∴ The range of principal values of sec

^{-1}is [0, Ï€] – {Ï€/2}.

Hence, option (B) is correct.