questions below:

Find the curve's unit tangent vector. Also, find the length of the indicated portion of the curve. r(t) = (5cos t)i + (5sin t)j + (3t)k, Ostsx Find the curve's unit tangent vector. T(t) = The length of the curve is (Type an exact answer, using it as needed.)Find the curve's unit tangent vector. Also, nd the length of the indicated portion of the curve. 2 r(t)=8ti + []t3'2k, Osts 57 The curve's unit tangent vector is (Eh + 03)] + (D) k. (Type exact answers, using radicals as needed.) The length of the indicated portion of the curve is D units. (Type an integer or a simplied fraction.) Find the curve's unit tangent vector. Also, find the length of the indicated portion of the curve. r(t) = 10 cos 3+ j+ (10 sin t) k, Osts Find the curve's unit tangent vector. T(t) The length of the curve is (Type an exact answer, using it as needed.)