AP EAMCET · Maths · Properties of Triangles
In \(\triangle A B C\), if \(a \cos ^2 \frac{C}{2}+c \cos ^2 \frac{A}{2}=\frac{3 b}{2}\), then
- A \(2 b=a+c\)
- B \(b^2=a c\)
- C \(\frac{1}{b}=\frac{1}{a}+\frac{1}{c}\)
- D \(a=c\)
Answer & Solution
Correct Answer
(A) \(2 b=a+c\)
Step-by-step Solution
Detailed explanation
In a \(\triangle A B C\), if…
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