Result in cosine cos a =
Angle in degrees a =
°
Tangent to Cosine Calculator
Our online calculator allows you to convert tangent values to cosine and find the corresponding angle in degrees. This tool is perfect for students, teachers, and professionals who need to perform trigonometric calculations quickly and accurately. Simply enter the tangent value, and the calculator will provide the cosine value and the angle in degrees. You can also choose the number of decimal places for the result. This calculator is based on the trigonometric identity:
sin²a + cos²a = 1 and tan a = sin a / cos a ⇒ cos a = 1 / √(1 + tan²a)
This equation is applicable for angles: 0 < a < π/2 or 0 < a < 90°. Our calculator allows you to compute the cosine for any valid tangent value.