The sine and cosine of acute angles are equal only for 45°
sin45° = cos 45° = 1/sqrt(2) = 0.7071
at a 45 degree angle, or pi/4
Sine= Opposite/ Hypotenuse Cosine= Adjacent/ Hypotenuse
No. The sine of an acute angle is less than 1. An acute angle is less than 90 degrees. The sine of 0 degrees is 0, and the sine of 90 degrees is +1. So the sines of the angles between 0 degrees and 90 degrees are less than 1.
it is a acute angle because acute angles are less than 90degrees so basically the answer is............ 0.602 mayo.fo.sho
√ 1/2 = sine(45)= cosine(45) -Key
In a right triangle, the sine of one acute angle is equal to the cosine of the other acute angle. This relationship arises from the definitions of sine and cosine: for an angle ( A ), ( \sin(A) ) is the ratio of the length of the opposite side to the hypotenuse, while ( \cos(B) ), where ( B ) is the other acute angle, is the ratio of the length of the adjacent side to the hypotenuse. Since the two angles are complementary (summing to 90 degrees), this relationship can be expressed as ( \sin(A) = \cos(90^\circ - A) ).
The sine and cosine of complementary angles are related through the identity (\sin(90^\circ - \theta) = \cos(\theta)) and (\cos(90^\circ - \theta) = \sin(\theta)). This means that the sine of an angle is equal to the cosine of its complementary angle, and vice versa. Therefore, for any angle (\theta), the values of sine and cosine are essentially swapped when considering complementary angles.
One is the hypotenuse times the sine of one acute angle, the other, the hypotenuse times the sine of the other acute angle (or the cosine of the first).
No, they do not.
All the angles in 4th quadrant have positive cosine and negative sine e.g. 280,290,300,310...etc.
No, it does not.
Cosine squared theta = 1 + Sine squared theta
use the inverse sine or cosine or tangent
its short for sine. theres sine, cosine, and tangent. sine is opposite over adjacent for the sides of a triangle (or angles)
Sine, Cosine, Tangent, Cosecant, Secant, Cotangent.
Well, the easiest way to go at it is simply to remember thatthe sine and cosine of any angle are always less than 1 .
you can use the sine, cosine, tangent formula.