निम्नलिखित सदिशों की दिक्-कोज्याएँ ज्ञात कीजिए|
` (i) 2hati +2hatj -hatk ,(ii) hatj -hatk ,(iii) 4hati+8hatj +hatk `

Answer

`(i) (2)/(3) , ( 2)/(3) ,-(1)/(3) " "(ii) (6)/(7) ,-(2)/(7) ,-(3)/(7) " "(iii) (3)/(5) ,0,-(4)/(5) `