What is the limit as t approaches 1 of cos(tpi) ?

The limit as t approaches 1 of cos(tpi) is -1

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limit as t approaches 1 of cos(tpi)

t \to 1 lim (cos (t π))

- 1

Solution steps

t \to 1 lim (cos (t π))

Plug in the value

t = 1

= cos (1 π)

Simplify

cos (1 π) : - 1

= - 1

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What is the limit as t approaches 1 of cos(tpi) ?
The limit as t approaches 1 of cos(tpi) is -1