betwas
betwas betwas
  • 16-10-2019
  • Mathematics
contestada

please help i have no idea what it means and the test is tomorrow.

Respuesta :

MathPhys
MathPhys MathPhys
  • 16-10-2019

Answer:

H. 2

Step-by-step explanation:

√(1 − cos² x) / sin x + √(1 − sin² x) / cos x

Use Pythagorean identity.

sin² x + cos² x = 1

So:

1 − cos² x = sin² x

and

1 − sin² x = cos² x

Substitute:

√(sin² x) / sin x + √(cos² x) / cos x

sin x / sin x + cos x / cos x

1 + 1

2

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