# Â  EXERCISE 3.2(Trigonometric Function)

Find the values of other five trigonometric functions in Exercises 1 to 5.(Ex 3.2 Trigonomety ncert maths solution class 11)

#### Question 1:, x lies in third quadrant.

Solution: Given,

Since,

We know that

Since x lies in third quadrant

We know that

Since,

Now

#### Question 2:, x lies in second quadrant

Solution: Given,

Since,

We know that

Since,

Again we know that

And

#### Question 3:, x lies in third quadrant.

Solution: Given

Since,

We know that

Now,

Again we know that

Since,

Solution: Given,

Sinc,

We know that

Since,

Since,

#### Question 5:, x lies in second quadrant.

Solution: Given

Since

We know that

Now,

Again we know that

Find the values of the trigonometric functions in Exercises 6 to 10.

#### Question 6:sin 765Â°

Solution: The values of sin x repeat after an interval of 2Ï€ or 360Â°

So we get

#### question 7:

Solution: The values of sin x repeat after an interval of 2Ï€ or 360Â°

#### Question 8:

Solution: The values of sin x repeat after an interval of 2Ï€ or 360Â°

#### Question 9:

Solution: The values of sin x repeat after an interval of 2Ï€ or 360Â°

#### Question 10:

Solution: The values of sin x repeat after an interval of 2Ï€ or 360Â°

Ex 3.1 Trigonometric function ncert solution class 11