juweria2005
juweria2005 juweria2005
  • 02-10-2021
  • Mathematics
contestada

. The value of expression cos(-ė)is
A. -sine•
B. sin•
C. cos°
D.-cos•​

Respuesta :

VectorFundament120
VectorFundament120 VectorFundament120
  • 02-10-2021

Answer:

C

Step-by-step explanation:

Cosine Function (Negative Measure)

[tex] \displaystyle \large{ \cos( - x) = \cos(x) }[/tex]

This is because cos(-x) starts in QIV to III to II and I.

In QIV, cos is positive hence cos(-x) = cosx.

So cos(-e°) is cose°

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