sin (90- teta) is equal to
![](https://hi-static.z-dn.net/files/d02/5c203e3d82ba42f91f5a5aaa44955f4e.jpg)
![](https://s3-us-west-2.amazonaws.com/courses-images/wp-content/uploads/sites/3675/2018/09/27003530/CNX_Precalc_Figure_05_02_0032.jpg)
Unit Circle: Sine and Cosine Functions
If xsin(90^° theta) cot(90^° theta) = cos(90^° theta), then x is
![](https://static.doubtnut.com/ss/web/1510987.webp)
If sin(90-theta)=1/(sqrt(2)) then the value of theta is ..
![](https://static.qumath.in/static/website/old-cdn-static/trigonometry/cos-90.png)
Cos 90 Degrees - Find Value of Cos 90 Degrees
![](https://www.math-only-math.com/images/trigonometrical-ratios-of-90-degree-minus-theta-a.png)
Trigonometrical Ratios of (90° - θ)
Sine & cosine of complementary angles (angles that sum to 90
![](https://classroom-images.cdn.askfilo.com/classroom/1695620741225_inkszddf_4037974.jpg)
90−θ)−1st quad [(270−θ) sin(90−θ)=cosθcos(90−θ)=sinθtan(90−θ
Sin Theta Formula - GeeksforGeeks
![](https://i.stack.imgur.com/Dei4R.gif)
![](https://i.ytimg.com/vi/u1vTvfPPIPE/maxresdefault.jpg)
sin (90^(@)+theta)sin (180^(@)-theta)tan (180^(@)-theta))/(cos (90
![](https://images.topperlearning.com/topper/tinymce/integration/showimage.php?formula=d53bec20ac609514c406e2da9a11bf55.png)
What if the sin is more than 90 degree and also the value is not
Quadratic Curve -- from Wolfram MathWorld
![](https://i.ytimg.com/vi/Cu0yrPf2660/hqdefault.jpg)
Sin(90-A), Sin(90+A), Cos(180-A), Cos(180+A), Sin(270-A), Sin(270+
![](https://unacademy.com/content/wp-content/uploads/sites/2/2022/06/tri-min-1.png)
Sin Theta Formula with Solved Example