Find an equation for the line tangent to the curve at the point define

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Find an equation for the line tangent to the curve at the point defined by the given value of t. Also, find the value of d2y dx2 at this point. x = sec2⁡t−1, y = cos⁡t; t = −π3 Write the equation of the tangent line. (Type exact answers, using radicals as needed. ) What is the value of d2y dx2 at this point? d2y dx2 = (Type an exact answer, using radicals as needed. )

Find an equation for the line tangent to the curve at the point defined by the given value of t. Also, find the value of d2y dx2 at this point. x = sec2⁡t−1, y = cos⁡t; t = −π3 Write the equation of the tangent line. (Type exact answers, using radicals as needed. ) What is the value of d2y dx2 at this point? d2y dx2 = (Type an exact answer, using radicals as needed. )

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Find an equation for the line tangent to the curve at the point defined by the given value of

t

. Also, find the value of

\frac{d^{2} y}{d x^{2}}

at this point.

x = \sec^{2} t - 1, y = \cos t; t = - \frac{π}{3}

Write the equation of the tangent line. (Type exact answers, using radicals as needed.) What is the value of

\frac{d^{2} y}{d x^{2}}

at this point?

\frac{d^{2} y}{d x^{2}} =

◻

(Type an exact answer, using radicals as needed.)

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