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The voltage in a circuit is given by the formula V = 16t3 - 79t. Find the values for t for which V is a maximum or a minimum.

larger t in seconds =
smaller t in seconds =

My Answer:

Sq root of 1.645833 = t
1.2829= t

V''=96t positive therefore a min

Larger t = 1.2829
smaller t = -1.2829

Can you please confirm this is correct.

  • Math -

    looks good to me, but I wonder whether negative values of t make sense ...

  • Math -

    Thanks Steve.

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