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If the distances from origin of the centres of 3 circles x 2 +y 2 +2alpha i x= a 2 (i=1,2,3) are in G.P. , then length of the tangents drawn to them frm any point on the circles x2+y2 = a2 are in : (a) A.P (b) G.P (c) H.P (d) None of these ans. is (b) ...plzz explain..



If the distances from origin of the centres of 3 circles x2+y2+2alphaix= a2 (i=1,2,3) are in G.P. , then length of the tangents drawn to them frm any point on the circles x2+y2 = a2 are in :


(a) A.P (b) G.P (c) H.P (d) None of these


ans. is (b) ...plzz explain..



 


      

Grade:11

2 Answers

Aman Bansal
592 Points
8 years ago

Dear Ranjita,

The length of the tangents are in GP.

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Ranjita yadav
35 Points
8 years ago

will u plzz explain..

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