Thegraph forms a rectangular hyperbola. In mathematics, a multiplicative inverse or reciprocal for a number x, denoted by 1/ x or x−1, is a number which when multiplied by x yields the multiplicative identity, 1. The multiplicative inverse of a fraction a / b is b / a. For the multiplicative inverse of a real number, divide 1 by the number. TheLaw of Sines. The Law of Sines (or Sine Rule) is very useful for solving triangles: a sin A = b sin B = c sin C. It works for any triangle: a, b and c are sides. A, B and C are angles. (Side a faces angle A, side b faces angle B and. side c faces angle C). Simplifywith factoring out. Tap for more steps −sin(x)(1−cos2(x)) - sin ( x) ( 1 - cos 2 ( x)) Apply pythagorean identity. −sin(x)sin2(x) - sin ( x) sin 2 ( x) Multiply sin(x) sin ( x) by sin2 (x) sin 2 ( x) by adding the exponents. Tap for more steps −sin3 (x) - sin 3 ( x) Thename cosine comes from the fact that sine and cosine are co-functions, (due to the fact that sin(x-90)=cosx. Tangent is not as easy to explain, it has to do with geometry and tangent lines. Cosine equals to the adjacent divided by the hypotenuse, and sine equals to the opposite divided by the hypotenuse. Think of this: soh, cah, and toa Cosa Cos b. Cos a Cos b is a trigonometric formula that is used in trigonometry. Cos a cos b formula is given by, cos a cos b = (1/2)[cos(a + b) + cos(a - b)]. We use the cos a cos b formula to find the value of the product of cosine of two different angles. cos a cos b formula can be obtained from the cosine trigonometric identity for sum of angles and difference of angles. Howdo you use the sum and difference identities to find the exact value of #cos 15^@#? How do you use the sum and difference identities to find the exact value of cos 75? How do you use the sum and difference identities to find the exact value of tan 105 degrees? .

what is cos x divided by sin x