These points are also on the negative side of the x axis, at -pi/4 and -pi/2. When we move along the x axis, notice what happens to the y value. On the left side of zero, tangent is negative. At x=-pi/4, tangent=-1.
The Independent Online. David Cameron may have called a referendum on the EU to blackmail Europe, according to Vladimir Putin. The Russian president also questioned Mr Cameronâs decision to call the vote, as it has caused a âgreat problemâ.
SIMFEROPOL, Ukraine â With thousands of heavily armed Russian troops occupying this perennially embattled peninsula, an overwhelming majority of Crimeans voted on Sunday to secede from Ukraine and join Russia, resolutely carrying out a public referendum that Western leaders had declared illegal and vowed to punish with economic sanctions.