bruh5588 bruh5588
  • 30-04-2020
  • Mathematics
contestada

sin^2(20°)+cos^2(20°)=

Respuesta :

altavistard
altavistard altavistard
  • 01-05-2020

Answer:

1

Step-by-step explanation:

There is an important trig identity which you must know:  (sin x)^2 + (cos x)^2 = 1.  

Therefore, sin^2(20°)+cos^2(20°) = 1

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