other govt exam BARC DAE Junior Purchase Assistant / Junior Storekeeper Mock Test Quantitative Aptitude Trigonometry Heights and Distances
The angle of elevation from point O to the top of two building of height 300 m and 180 m is 60° and 30° respectively. Find the angle of depression from top of large building to the top of small building.
1
cot-1(√3/7)
2
tan-1(7/√3)
3
tan-1(√3/7)
4
cot-1(√7/3)