0 votes 0 votes The value of $\sin 120^{o}+\sin 780^{o}-\cos 360^{o}$ $=(\sin (90^{o}\times 2)-60^{o})+\left ( \sin \left ( 90^{o}\times 8 \right )+60^{o} \right )-\left ( \cos (90^{o}\times 4)+0^{o} \right )$ $=\frac{\sqrt{3}}{2}+\frac{\sqrt{3}}{2}-1=0.73$ right?? Quantitative Aptitude general-aptitude + – srestha asked May 28, 2019 • edited May 28, 2019 by srestha srestha 328 views answer comment Share Follow See all 3 Comments See all 3 3 Comments reply Satbir commented Jun 3, 2019 reply Follow Share You can use a calculator to verify these things. 0 votes 0 votes srestha commented Jun 3, 2019 reply Follow Share My ans. is correct or not?? In calculator giving diff ans 0 votes 0 votes Satbir commented Jun 3, 2019 reply Follow Share It is correct. 0 votes 0 votes Please log in or register to add a comment.