sabina7136
sabina7136 sabina7136
  • 15-05-2019
  • Mathematics
contestada

question 65 true or false

question 65 true or false class=

Respuesta :

calculista
calculista calculista
  • 15-05-2019

Answer:

True

Step-by-step explanation:

we know that

sin(90°)=1

sin(270°)=-1

sin(-90°)=-sin(90°)=-1

sin(-90°)=sin(270°)

therefore

For sin(x)=-1

the values of x are x=-90° and x=270° ------> is true

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