Free math lessons and math homework help from basic math to algebra geometry and beyond. Free math problem solver answers your algebra geometry trigonometry calculus and statistics homework questions with step by step explanations just like a math tutor.
Ask questions doubts problems and we will help you.
Sin2theta cos2theta. The points labelled 1 sec θ csc θ represent the length of the line segment from the origin to that point. In mathematics an identity is an equation which is always true. Plot of the six trigonometric functions the unit circle and a line for the angle θ 0 7 radians.
Students teachers parents and everyone can find solutions to their math problems instantly. 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. 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.
For math science nutrition history. A proof of one of the most well known identities in math. Sin2theta cos2theta.
Compute answers using wolfram s breakthrough technology knowledgebase relied on by millions of students professionals.