লক্ষ্য করুন: এই এন্ট্রির অনুবাদ বর্তমানে মান পর্যালোচনার অধীনে রয়েছে, তাই কিছু বিষয়বস্তু সাময়িকভাবে শুধুমাত্র ইংরেজিতে প্রদর্শিত হচ্ছে।
এই এন্ট্রিটি এখনও আপনার ভাষায় অনুবাদ করা হয়নি, তাই নিচে মূল লেখাটি দেখানো হচ্ছে।
unit circle
This term is a specialized mathematical construct used almost exclusively within the fields of trigonometry and geometry. It serves as a conceptual bridge between right-triangle trigonometry and the study of periodic functions, allowing angles to be extended beyond 90 degrees into all four quadrants of a coordinate plane.
In a pedagogical context, the unit circle is treated as a standard reference tool. Because it is a specific, unique mathematical definition rather than a general category of objects, it is rarely used in the plural. It functions as a fixed reference point for calculating coordinates (x, y) as (cos θ, sin θ).
Meanings
Examples
The teacher drew a unit circle on the whiteboard to explain trigonometric functions.
I need to memorize the coordinates on the unit circle for the exam tomorrow.
Any point on the unit circle has coordinates that satisfy the equation x squared plus y squared equals one.
Any point on the unit circle has coordinates that satisfy the equation x squared plus y squared equals one.
Wait, does the unit circle always start from the positive x axis?
The unit circle simplifies the process of finding sine and cosine values for any angle.
I can see how the unit circle relates to the Pythagorean theorem.
Let us plot the angle of pi over three on the unit circle.
The radius of a unit circle is by definition exactly one.