If the angles made by the normal of the plane 2x+3y−4z−16=0 with the coordinates axes X, Y, Z are , then Cos−1k1,Cos−1k2,Cos−1k3 respectively are

The d.r’s of normal of the plane 2x+3y−4z−16=0 are 2,3,−4 and the d.c’s are  229,329,−429∴cosα=229,cosβ=329,cosγ=−429Where α,β,γ are the angle made by the normal with X, Y, Z axes respectiely.∴α=Cos−1229,β=Cos−1329γ=Cos−1−429 ∴k1,k2,k3 values are  229,329,−429 respectively