defence exam SSB Head Constable (Communication) 2023 Mock Test Mathematics Trigonometry Properties of Triangles
In a ΔABC, if a = 18, b = 24 and c = 30 then find the value of sin (A/2) ?
1
\(\frac{1}{{\sqrt {10} }}\)
2
\(\frac{1}{{\sqrt {5} }}\)
3
\(\frac{1}{{\sqrt {15} }}\)
4
None of these