Question

If log , log and log are in AP, where a, b, c are in GP, then a,b,c are the lengths of sides of

• A. An isosceles triangle
• B. An equilateral triangle
• C. A scalene triangle
• D. None of these

Answer 1

Answer: (D)

None of these

Answer 2

. = $\left( \frac { 3 b } { 5 c } \right) ^ { 2 }$

̃ (5c)³ = (3b)³ ̃ 5c = 3b ̃ b² = ac

̃ 9b² = 9ac ̃ 25c² = 9ac

a : b : c = 5 : 3 : 9/5 ̃ b + c < a ̃ NoD