Law of Tangents – Definition – Formula – Proof and Examples In trigonometry, the law of tangents describes the relationship between the sum and difference of sides of a right triangle and tangents of half of the sum and difference of the angles opposite to the sides. Formulas for law of tangents The law of tangents […]

Trigonometric Ratios of Some Specific Angles Trigonometric Ratios      Here are Trigonometric Ratios of some Specific angles,   00, 300, 450 , 600  and 900. Example: (1) Find the value of sin600 cos300 + sin300 cos600 Values of Trigonometric Ratios from above table,                        sin 600 = √3/2,                       […]

Mathwords A to Z With Meanings There are many types of dictionaries. English-Dictionary Graph-Dictionary etc, Graph-Dictionary contains all types of graphs English-Dictionary is common dictionary. In math-Dictionary we can find list of more than 2100 mathematical words and their meanings. Dictionary is a book in which we can see the meaning of each and every word.  […]

Law of cosines or Cos law  The law of cosines or Cos law is one of the trigonometric laws which is useful for solving the angles or sides of a triangle. For example, if all three sides of a triangle (SSS) are given, the cosine rule allows one to easily find any of the […]

Law of sines or Sine law  The law of sines or Sine law is one of the trigonometric laws which is useful for solving the angles or sides of a triangle. In trigonometry, the law of Sines says that in any given triangle, the ratio of any side length to the sine of its opposite […]