Question

( theta quad operatorname{poin} t(1,2) quad varphi )
( theta=cos 1(-1 / 3) )
( cos theta=-1 / 3 quad sum_{1}=0 )
( tan theta=-2 sqrt{2} )
( y-y=mleft(x-x_{1}right) )
( y-2=-2 sqrt{2}(x-1) )
( y-2=-2 sqrt{2} x+2 sqrt{2} )
( 2 sqrt{2} x+y-2(1+sqrt{2})=0} )

# The equation of straight line which passes through the point (1, 2) and makes an angle cos ( with the x-axis is (A) 2/2 x + y - 2(V2 + 1) = 0 (8) 2x + 2 y - V2 = 0 (C)x+2/2y-2/2 (12-1) = 0 (D) none of these

Solution