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CBSE Class 10 Answered

planes
Asked by Rinkus | 17 Aug, 2008, 08:20: AM
answered-by-expert Expert Answer

eq of XY plane z=0

so angle b/w two planes which can be written as ax+by+cz+d=0 and px+qy+rz+s=0

is cos-1 (  (ap+bq+cr) /  ((a2+b2+c2)(p2+q2+z2) )1/2

so angle b/w given planes is cos-1 (5 / (138)1/2 )

Answered by | 08 Sep, 2008, 06:31: PM
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