defence exam SSB Head Constable (Communication) 2023 Mock Test Mathematics Trigonometry Properties of Triangles
In a triangle ABC if a = 2, b = 4 and sin A = 1/4, then what is angle B equal to?
1
\(\rm \pi\over6\)
2
\(\rm \pi\over3\)
3
\(\rm \pi\over4\)
4
\(\rm \pi\over2\)