Find T, N, and B for the given space curve.r(t) = (cosh t)i + (sinh t)j + tk 

A. T = - (tanh t)i  + j  + (sech t)k; N = (-sech t)i  - (sinh t)k  ; 
B. T = (tanh t)i  + j  + (sech t)k; N = (sech t)i  - (tanh t)k
C. T = -  (tanh t sech t)i  + j  + (sech t)k; N = (-sech t)i  - (tanh t)k
D. T = (tanh t sech t)i  + j  + (sech t)k; N = (sech2 t)i  - (sinh t)k;  


Answer: B

Mathematics

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