Q4. Without using trigonometric tables, evaluate the following: cos’20° + cos’70° / sec’50° - cot’40° + 2cosec’58° - 2cot58° tan32° - 4tan13° tan37° tan45° tan53° tan77°
This podcast is a part of a series for, CBSE Class 10 Maths. We recommend that you take a look at our YouTube channel, to enter this new world of virt...