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clculo vectorial PROBLEMAS COMPLEMENTARIOS 3.31. Suponga que R = e 'i + In(f + 1)j - tan rk. Encuentro: a) dR/di, b) d-Ridi, c) (dR/dil

clculo vectorial

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PROBLEMAS COMPLEMENTARIOS 3.31. Suponga que R = e 'i + In(f + 1)j - tan rk. Encuentro: a) dR/di, b) d-Ridi, c) (dR/dil y d) (d-R/drent = 0. 3.32. Suponga que una particulare mueve a lo largo de la curva x = 2 sen 3t, y = 2 cos 3t y z = 81, en cualquier momento 1>0. a) Encuentro la velocidad y aceleracion de la particula b) Calcule las magnitudes de la velocidad y la aceleracion. 3.33. Encuentro un vector unitario tangente a cualquier punto de la curva x = a cos wt, y = a sen of y z = bt, donde a. by w son constantes. 3.34. Suponga que A = Pi - rj + (21 + 1)k y que B = (21 - 3)i + j - rk. Encuentro dB a) dt (A . B), b) -(A x B), c) - A + B yd) di A x en / = 1. du 3.35. Suponga que A = sen ui + cos uj + uk, B = cos ui - sen uj - 3k, y C = 2i + 3j - k. Encuentro (A x (B x C)) enu = 0. du

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