Respuesta :

Answer:

[tex]\frac{\pi }{4}[/tex] and [tex]\frac{\pi }{2}[/tex]

Step-by-step explanation:

To convert from degrees to radians

radian measure = degree measure × [tex]\frac{\pi }{180}[/tex] , then

(2)

radian measure = 45 × [tex]\frac{\pi }{180}[/tex] ( cancel 45 and 180 )

                          = [tex]\frac{\pi }{4}[/tex]

(3)

radian measure = 90 × [tex]\frac{\pi }{180}[/tex] ( cancel 90 and 180 )

                           = [tex]\frac{\pi }{2}[/tex]