If $tan x = 2$ , what is $sin 2 x$ ?

Practise more Mathematics: Algebra, Functions, Geometry, Calculus and Probability.

Free questions with an explanation for every one, and full timed Državna Matura (Croatia) mock tests.

All Mathematics: Algebra, Functions, Geometry, Calculus and Probability questions Take a mock test

More Mathematics: Algebra, Functions, Geometry, Calculus and Probability questions

A sum of $1000$ euros earns compound interest of $10%$ per year. What is the amount after $2$ years?
A price of $100$ euros is reduced by $20%$ and the new price is then increased by $20%$ . What is the final price?
The function $f (x) = x^{3} - 3 x$ has a local minimum at which value of $x$ ?
What is the sum of the interior angles of a hexagon?
The tangent to the parabola $y = x^{2}$ at the point where $x = 3$ meets the $x$ -axis. At what $x$ -value?
What is the area of the region enclosed by the graphs of $y = x^{2}$ and $y = x$ ?