For the Curve R(t), Find an Equation for the Indicated

question 45

Multiple Choice

For the curve r(t) , find an equation for the indicated plane at the given value of t.
- $\mathbf { r } ( \mathrm { t } ) = ( \mathrm { t } - 9 ) \mathbf { i } + ( \ln ( \sec \mathrm { t } ) - 1 ) \mathbf { j } + 7 \mathbf { k } , - \pi / 2 < \mathrm { t } < \pi / 2$ ; normal plane at $t = 10 \pi$ .

• A) \(x = - 10 \pi - 9\)
• B) \(x = 9 - 10 \pi\)
• C) \(x = 10 \pi + 9\)
• D) \(x = 10 \pi - 9\)

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