For the curve r(t), find an equation for the indicated plane at the given value of t.r(t) = (t + 7)i + (ln(cos t) - 8)j + 5k, -?/2 < t < ?.2; rectifying plane at t = 
.
A. 
(x - (1 + 7)) = 0
B. 
+ 
= 0
C. - 
+ 
= 0
D. 
- 
= 0
Answer: B
Mathematics
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A. 
B. 
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