shehbazk84 shehbazk84
  • 10-04-2018
  • Mathematics
contestada

In a triangle ABC, tan (a) = 20/21. Find sin (a) and cos (a)

Respuesta :

jelkhechen86
jelkhechen86 jelkhechen86
  • 14-04-2018
Answer:

sin(a)=20/29

cos(a)=21/29
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