jacobc20
jacobc20 jacobc20
  • 25-02-2021
  • Mathematics
contestada

please help quickly. thanks in advance​

please help quickly thanks in advance class=

Respuesta :

janmilczek
janmilczek janmilczek
  • 25-02-2021

Answer:

a. sin 30* = sin 150*

b. sin 1* = sin 179*

a. cos 340* = cos 20*

b. cos 260* = cos 100*

Step-by-step explanation:

sine is symmetrical around x = 90*

cosine is symmetrical around x = 180*

* means degree sign of course.

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