Mathematics
In the given diagram, O is the center of circle circumscribing the △ABC, CD is perpendicular to chord AB. ∠OAC = 32°. Find each of the unknown angles, x, y and z.
Related Questions
Find :
(a) (sin θ + cosec θ)2
(b) (cos θ + sec θ)2
Using the above results prove the following trigonometry identity :
(sin θ + cosec θ)2 + (cos θ + sec θ)2 = 7 + tan2 θ + cot2 θ
Study the graph and answer each of the following :
(a) Name the curve plotted
(b) Total number of students
(c) The median marks
(d) Number of students scoring between 50 and 80 marks.
