If A = t2i- tj+ (2t + 1)kand B = (2t 3)i+j -tk, evaluate at t = 1,

(i)

d/dt(A x B)

(ii)

d/dt(A xdB/dt)

i, j, kare vectors

It's the working I need help with. I get confused when it comes to differentiating the vectors when there's no scalar.

Thanks.