SOLUTION: let a = 2i + j − 2k, b = i − j + k and c = −i − 2j + 2k Find (a) the value of α for which a + αb is orthogonal to c. THanks in advance

Algebra ->  Points-lines-and-rays -> SOLUTION: let a = 2i + j − 2k, b = i − j + k and c = −i − 2j + 2k Find (a) the value of α for which a + αb is orthogonal to c. THanks in advance      Log On