Sum of all the angles on a straight line is:
180 Degrees
90 Degrees
45 Degrees
30 Degrees
Angles A , B and C of triangle ABC satisfy the relations angleB - angle A = 30 degrees and angleC - angle B = 45 degrees . Find all the angles
prove that sec 30 degrees tan 60 degrees + sin 45 degrees cosec 45 degrees +cos 30 degrees cot 60 degrees =7/2