Secant 1 Cosine Math

Plot of the six trigonometric functions the unit circle and a line for the angle θ 0 7 radians.

Secant 1 cosine math. Math explained in easy language plus puzzles games quizzes worksheets and a forum. Sine cosine and tangent. Secant is the reciprocal of cosine. It is not commonly used and is equal to 1 cosine.

In a right triangle the secant of an angle is the length of the hypotenuse divided by the length of the adjacent side. In a right angled triangle the secant of an angle is. The length of the hypotenuse divided by the length of the adjacent side. In fact most.

Sine cosine and tangent. The abbreviation is sec. Three functions but same idea. Trigonometric identities you might like to read about trigonometry first.

Of the six possible trigonometric functions secant cotangent and cosecant are rarely used. Secant cosecant and cotangent. Before getting stuck into the functions it helps to give a name to each side of a right triangle. However the reciprocal functions secant cosecant and cotangent can be helpful in solving trig equations and simplifying trig identities.

Sec θ hypotenuse adjacent. Sin θ tan θ and 1 are the heights to the line starting from the x axis while cos θ 1 and cot θ are lengths along the x axis starting from the origin. Cotangent is the reciprocal of tangent. We can get three more trigonometric functions by taking the reciprocals of three basic functions.

For k 12 kids teachers and parents. The points labelled 1 sec θ csc θ represent the length of the line segment from the origin to that point. Sine cosine and tangent. The abbreviation of secant is sec.

Tan 2 θ 1 sec 2. In a formula it is abbreviated to just sec. The secant function is the reciprocal of the cosine function. Sine cosine and tangent are the main functions used in trigonometry and are based on a right angled triangle.

When solving right triangles the three main identities are traditionally used. These can be trivially true like x x or usefully true such as the pythagorean theorem s a 2 b 2 c 2 for right triangles there are loads of trigonometric identities but the following are the ones you re most likely to see and use. In mathematics an identity is an equation which is always true. Secant sec trigonometry function see also secant of a circle.