Question

In this question:-calculate the angle of 1° and 1° =(π/180) rad so why we have taken 360 in this solution??​

Answer 1

Explanation:

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Trigonometric Functions

NCERT Solution

Exercise 1

Question 1: Find the radian measures corresponding to the following degree measures:

(i) 25° (ii) -47°30’ (iii) 240° (520°

Solution:We know, π radian = 180°

So, `1°=(π)/(180°)`

`25°=25xx(π)/(180°)`

`=(5π)/(36)` radian

`-47°30’=-(95)/2`

So, `(95)/2=(95)/(2)xx(π)/(180)`

`=-(19π)/(72)` radian

`240°=240xx(π)/(180)`

`=(4π)/3` radian

`520°=520xx(π)/(180)`

`=(26π)/(9)` radian