The result of the computation is -1.0642 - √3( -2.9238).
Trigonometric ratios are obtained from the ratio of the sides of a right angled triangle. These ratios are;
The inverse of these ratios are also important;
- sec x = 1/cos x
- cosec x = 1/sin x
- cot x = 1/tan x
Hence;
cosec 290° = 1/sin 290° = -1.0642
sec 250° = 1/cos 250° = -2.9238
So; -1.0642 - √3( -2.9238)
Learn more about cosec: https://brainly.com/question/87846
