demondmodz demondmodz
  • 15-06-2018
  • Mathematics
contestada

Solve the equation sin(x° − 20°) = cos(42°) for x, where 0 < x < 90.

Respuesta :

tonb
tonb tonb
  • 15-06-2018
The fact that cos(x)=sin(90°−x) can help us here.

The equation can be rewritten as:

sin(x° − 20°) = sin(90° - 42°) = sin(48°)

so x-20 = 48 => x=68°
Answer Link
dhevannnyahhh
dhevannnyahhh dhevannnyahhh
  • 30-11-2020

Answer:

B.) 68

Step-by-step explanation:

PLATO

Answer Link

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