Question

The equations of the lines through $$(1,\,1)$$ and making angles of $$45^{\circ}$$ with the line $$x+y=0$$ are

A
x1=0,xy=0
B
xy=0,y1=0
C
x+y2=0,y1=0
D
x1=0,y1=0

Solution

The correct option is C $$x-1=0,\,y-1=0$$$$m=1,\,y-1=\dfrac{m\pm\,tan\,45^{\circ}}{1+\mp\,m\,tan\,45^{\circ}}(x-1)$$,$$\Rightarrow\,y-1=\dfrac{(-1)\pm1}{1\pm1}(x-1)$$$$\Rightarrow\,y=1,\,x=1$$Mathematics

Suggest Corrections

0

Similar questions
View More

People also searched for
View More