Express the vector 7 below as a sum of two vectors and , where is parallel to the vector i given below, and Tz is perpendicular to . Make sure that the first vector in your sum is Ty and the second is z. Use the square root symbol V where needed to give an exact value for your answer. [3] d= 1 -9 00 T= 10 0+0 = 7+72 9 00