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# NCERT Solutions class-11 Maths Exercise 3.4

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Exercise 3.4

Find the principal and general solutions of the following equations:

1.

Ans. Given: Here lies in first or third quadrant.

or

or

or

Therefore, the principal solutions are

Now,

where Z

2.

Ans. Given: Here lies in first or fourth quadrant.

or

or

or

Therefore, the principal solutions are

Now,

where Z

3.

Ans. Given: Here lies in second or fourth quadrant.

or

or

or

Therefore, the principal solutions are

Now,

where Z

4.

Ans. Given: Here lies in third or fourth quadrant.

or

or

or

Therefore, the principal solutions are

Now,

where Z

5.

Ans. Given:

Z

or Z

or Z

or Z

Therefore, the principal solutions are Z

6.

Ans. Given:

or

or Z

or Z

7.

Ans. Given:

or

or Z

or Z

or Z

8.

Ans. Given:

or

or

or Z

9.

Ans. Given:

or

or Z

or Z

or Z

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### 1 thought on “NCERT Solutions class-11 Maths Exercise 3.4”

1. Very good sollution