EXERCISE 1.1Q.1 A) Determine which of the following pairsof angles are

1.	EXERCISE 1.1Q.1 A) Determine which of the following pairsof angles are co-terminal.i) 210°, -150° ii) 360°, -30°iii) -180°, 540° iv) -405°, 675°v) 860°, 580° vi) 900°, -900°
Answer» 1) 210-(-150)=1(360) which are multiple of 360so 210,(-150) are co terminals 2) 360-(-30)=390=3(130)which are notmultiple of 360so 360(-30) are not co terminal angles 1) i) 210-150=210-(-150)=210+150=360, so, 210, (-150) are co terminals; 1)¡) 210-150=210-(-150)=210+150=360, so,210,(-150) are co terminals

EXERCISE 1.1Q.1 A) Determine which of the following pairsof angles are co-terminal.i) 210°, -150° ii) 360°, -30°iii) -180°, 540° iv) -405°, 675°v) 860°, 580° vi) 900°, -900°

Answer»

1) 210-(-150)=1(360) which are multiple of 360so 210,(-150) are co terminals

2) 360-(-30)=390=3(130)which are notmultiple of 360so 360(-30) are not co terminal angles

1) i) 210-150=210-(-150)=210+150=360, so, 210, (-150) are co terminals;

1)¡) 210-150=210-(-150)=210+150=360, so,210,(-150) are co terminals