engineering recuitment UPSSSC Assistant Boring Technician 2022 Mock Test Quantitative Aptitude Trigonometry Trigonometric Ratios and Identities
\(\sqrt{\cos 60^{\circ} \cos 30^{\circ}- \sin60^{\circ} \sin 30^{\circ}}\) चे मूल्य शोधा.
1
1
2
\(\frac{1}{\sqrt2}\)
3
0
4
\(\frac{\sqrt3}{2}\)