Practicing Success
If sec(30° - 4x) = cosec(7x - 60°) then value of x? |
40° 60° 30° 45° |
40° |
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° |