请你生成一个 图解三角函数 也就是将6个三角函数的 在单位圆中进行表示 请你注意每一个三角函数的在单位圆中的具体定义 ---**Chart Description:** * **Type:** Geometric diagram illustrating trigonometric functions in a unit circle. * **Main Elements:** * **Coordinate System:** Implied Cartesian coordinate system centered at the origin. Horizontal axis is the x-axis, vertical axis is the y-axis. * **Unit Circle:** A grey circle centered at the origin (0,0). The radius is labeled '1'. Grid lines are visible in the background. * **Angle θ:** A purple arc starting from the positive x-axis and rotating counterclockwise to a point (labeled with a purple circle) on the unit circle in the first quadrant. The angle is labeled `θ`. * **Point on Circle:** A purple circle marks a point on the unit circle in the first quadrant. * **Lines Representing Trigonometric Functions:** * **sin θ:** A vertical blue line segment from the x-axis up to the point on the circle. Labeled `sin θ`. * **cos θ:** A horizontal red line segment from the origin to the projection of the point on the circle onto the x-axis. Labeled `cos θ`. * **Radius:** The radius line segment from the origin to the point on the circle is labeled '1' (dotted line). The triangle formed by this radius, `cos θ`, and `sin θ` is shaded pink. * **tan θ:** A green line segment starting from the point (1,0) on the positive x-axis, tangent to the unit circle, extending upwards and to the right. It is labeled `tan θ`. It forms a right triangle with the segment of the x-axis from (1,0) to the intersection point and a vertical line from the intersection point to the x-axis (not explicitly drawn). The green line intersects the extended radius line. * **sec θ:** An orange line segment on the positive x-axis extending from the origin to the point where the green `tan θ` line intersects the x-axis. Labeled `sec θ`. * **cot θ:** An orange line segment starting from the point (0,1) on the positive y-axis, tangent to the unit circle, extending horizontally to the right. It is labeled `cot θ`. It forms a right triangle with the segment of the y-axis from (0,1) to the intersection point and a horizontal line from the intersection point to the y-axis (not explicitly drawn). The orange line intersects the extended radius line. * **csc θ:** An orange line segment on the positive y-axis extending from the origin upwards to the point where the orange `cot θ` line intersects the y-axis. Labeled `csc θ`. * **Annotations:** Length indicators with double-headed arrows label `cos θ`, `sin θ`, `csc θ`, and `sec θ` on the diagram. * **Text Boxes (top right):** Two text boxes contain the incomplete labels "Se" and "CSC". Their purpose is unclear in this context.