Find the values of trignometric ratios and the value of theeta
Answers
Answer:
The Trigonometrical ratios table will help us to find the values of trigonometric standard angles.
The standard angles of trigonometrical ratios are 0°, 30°, 45°, 60° and 90°.
The values of trigonometrical ratios of standard angles are very important to solve the trigonometrical problems. Therefore, it is necessary to remember the value of the trigonometrical ratios of these standard angles. The sine, cosine and tangent of the standard angles are given below in the table.
a) divide the numbers 0, 1, 2, 3 and 4 by 4,
(b) take the positive square roots,
(c) these numbers given the values of sin 0°, sin 30°, sin 45°, sin 60° and sin 90° respectively.
(d) write the values of sin 0°, sin 30°, sin 45°, sin 60° and sin 90° in reverse order and get the values of cos 0°, cos 30°, cos 45°, cos 60° and cos 90° respectively.