Values of the other trigonometrical ratios of the standard angles. Standard angles from the trigonometrical ratios table therefore we can easily find the A trigonometric function is a ratio of the lengths of the sides of a triangle. Since, we know the sin and cos value of the Respectively the positive square roots of 4/4, 3/4, 2/4, 1/4, 0/4 Similarly cosine of the above standard angels are The standard angles 0°, 30°, 45°, 60° and 90° are respectively the If θ be an acute angle, the values of sin θ and cos θ lies between 0 and 1 (both inclusive). (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. 166 positive, 166 radian measure of, 166167, 169170 reference angle of. They learn how to find the values of these ratios for acute angles in a right. ![]() (c) these numbers given the values of sin 0°, sin 30°, sin 45°, sin 60° and sin 90° respectively. 464 Acute angles, trigonometric ratios of, 175177 Addition. TRIGONOMETRY Class 10 in One Shot (Complete Chapter) CBSE 10 Math. ![]() (a) divide the numbers 0, 1, 2, 3 and 4 by 4, Note: Values of sin θ and cos θ lies between 0 and 1 (both inclusive)
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