lowehan002 lowehan002
  • 26-04-2021
  • Mathematics
contestada


If cos A= -4/5 and A is in the second quadrant, then cos 2A = ?

Respuesta :

briarhoff55 briarhoff55
  • 27-04-2021

Answer:

i think its second pythagreom therom

Step-by-step explanation:

because

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