Teaching HTET TGT Level 2 - 2024 Mock Test Mathematics Trigonometry Angles and measures in degrees and radians
If sin 3A = cos (A - 30), where 3A and (A - 30) are acute angles, find the value of (sin 2A + cos 2A)
1
\(\dfrac{\sqrt{3}+1}{2}\)
2
\(\dfrac{\sqrt{3}+1}{3}\)
3
\(\dfrac{\sqrt{3}-1}{2}\)
4
\(\dfrac{\sqrt{3}-1}{3}\)