Question

if the coordinate of P.Q.R ans S be (1,2,2) , ( 2,4,0 ) ,( -3 , 0 , 1 ) and ( -1 , -2 ,2) respectively , Show that the projection of PQ on RS is equal to the projection of RS on PQ . Also , Show that the angle between PQ and RS is cos-1(-4/9)

Answer 1

Answer:

Ncert book mein milega iska answer ok.

Step-by-step explanation:

• Ncert book mein milega iska answer ok.