Understanding the Meaning of Sin, Cos, and Tan in Trigonometry
2017年6月6日 · Sin, cos, and tan are related to each other through the Pythagorean identity, which states that sin²θ + cos²θ = 1, where θ represents an angle in a right triangle. This means …
What is the true definition and meaning of sin/cos/tan? - Physics …
2014年10月5日 · The circle is the unit circle, i.e. the circle of radius 1, defined by ##x^2+y^2=1##. One way of stating this definition in words is that to say that cos t is the new x coordinate of …
What are Sin hx, Cos hx, Tan hx in Mathematics? - Physics Forums
2003年5月20日 · What is the unit circle and how is it related to sin hx, cos hx, and tan hx? The unit circle is a circle with a radius of 1 unit, centered at the origin of a coordinate system. It is …
Capitalising trigonometric functions - Physics Forums
2012年12月14日 · The lowercase trigonometric functions (sin, cos, tan) represent the ratios of sides in a right triangle, while their uppercase counterparts (SIN, COS, TAN) represent the …
Confusion regarding sin and cos - Physics Forums
2006年4月30日 · Sin and cos are both trigonometric functions that represent the relationship between the sides of a right triangle and its angles. Sin (sine) represents the ratio of the …
Physical Applications of the “Tan Rule” - Physics Forums
2021年9月20日 · (by Pythagoras’ Theorem and the ratio: $$\tan\hat{C}=\frac{c\sin\hat{B}}{a-c\cos\hat{B}}=\frac{ka\sin\hat{B}}{a-ka\cos\hat{B}}=\frac{k\sin\hat{B}}{1-k\cos\hat{B}}$$ …
Solving SIN, COS, TAN with a TI-30XA Calculator - Physics Forums
2012年2月1日 · So for geometry class today, the teacher taught us this COS, SIN, TAN stuff. I got the concept how to get the fractions from the triangle and everything. Problem is how to plug it …
Understanding Trigonometric Equations with Infinite Solutions
2013年4月14日 · This is due to the periodic nature of trigonometric functions. The function sin(3x) can have multiple values for the same input, leading to an infinite number of possible …
Cosine, Sin, Tangent when find force/tension - Physics Forums
2011年4月9日 · FAQ: Cosine, Sin, Tangent when find force/tension What are cosine, sine, and tangent? Cosine, sine, and tangent are three basic trigonometric functions used to calculate …
SOHCAHTOA: Seemingly Simple, Conceivably Complex - Physics …
2019年10月31日 · What is SOHCAHTOA. SOHCAHTOA is a mnemonic acronym used in trigonometry to remember the relationships between the sides and angles of right triangles.