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If the angles A,B and C of a triangle ABC are in AP and the sides a,b and c opposite to these angles in GP then, a)b 2 =a 2 +c 2 b)b 2 =ac c)2b 2 =a 2 +c 2 d)none of these please give the solution too,not just the asnwer.

If the angles A,B and C of a triangle ABC are in AP and the sides a,b and c opposite to these angles in GP then,
a)b2=a2+c2
b)b2=ac
c)2b2=a2+c2
d)none of these
please give the solution too,not just the asnwer.

Grade:12

2 Answers

Saurabh Koranglekar
askIITians Faculty 10335 Points
4 years ago
Dear student

B is the 2ndterm in the AP

so b must be the middle term in the GP

So b^2 = ac

Regards
Vikas TU
14149 Points
4 years ago
Dear student 
If the angles A,B,C of a triangle are in A.P. and sides a,b,c, are in G.P., then a^2, b^2 , c^2 are in AP 
So , C will be correct one , 
Good Luck 

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