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

Answer Link

Otras preguntas

what did george rapp do
Which option best completes the diagram? Apex
The study of unconscious motives and conflicts to determine human behavior is known as A) psychoanalysis B) dreaming C) biofeedback D) introspection
Expand and simplify (x + 5)(x + 5)
which action does does the executive branch take as part of the government
in order to get the most benefits from exercise with last amount of risk you should
Two plants, plant A and B, are being grown in a science experiment. Plant A is 6 cm tall and growing at a rate of 4 cm/day. Plant B is 10 cm tall anf growing at
PLZ HELP Describe and explain genetic drift in terms of causes, short-term and long-term consequences and how it relates to the theory of evolution.
options:A. the damming of the Nile riverB. pollution created by farmersC. the deserts surrounding the nileD. yearly flooding of the nile
Line a is parallel to line b. Which statement about lines a and b is true?