If sec(30° - 4x) = cosec(7x - 60°) then value of x?
Answer & explanation
Correct answer: option 1
sec(30° - 4x) = cosec(7x - 60°)
sec = cosec is possible only when sum of the angles of sec and cosec is equal to 90o
30° - 4x + 7x - 60° = 90°
3x = 120°
x = 40°