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.
The 2018 Russian presidential election will take place on 18 March 2018. The first round will be held on Sunday 18 March 2018. If in the first round no candidate attains an absolute majority of the votes, then according to the law, a second round will take place exactly three weeks later, on 8 April 2018. On 6 December 2017, incumbent President Vladimir Putin announced that he would seek reelection for a second consecutive term and fourth term overall. Putin is widely expected to win, and has co