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:cos(value)

This performs the cosine function on a value.

Location Edit

TI-84

  • cos(

TI-89

  • 2ND + Z (cos)

TI-nspire

  • cos

Examples Edit

  • \cos \left( 2 \pi / 6 \right)
    • The above equation will give you an answer of .5 on Radian setting.
    • In this case, x = \frac{2 \pi}{6}.
  • \cos \left( \pi \right)
    • The above equation will give a an answer of -1 on Radian setting.
    • In this case, x = \pi.

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