engineering recuitment NFC Chemical Plant Operator Mock Test Quantitative Aptitude Trigonometry Trigonometric Ratios and Identities
ଯଦି କୋଣ A = 30° ଏବଂ କୋଣ B = 90°, sin (A + B) =?
1
\(\frac{2}{{\sqrt 3 }}\)
2
\(\frac{1}{2}\)
3
\(\frac{1}{{\sqrt 2 }}\)
4
\(\frac{{\sqrt 3 }}{2}\)