Teaching Bihar STET Paper 1 (माध्यमिक) Mock Test 2024 Quantitative Aptitude Trigonometry Trigonometric Ratios and Identities
If a triangle ABC is right-angled at A, then what is the value of \(\rm \sin\frac{B+C}{2}\cos\frac{B+C}{2}\)?
1
\(\frac{\sqrt3}{4}\)
2
\(\frac{1}{2}\)
3
\(\frac{1}{4}\)
4
√2