Question

A line segment ab through the point a 20 makes an angle of 30° with the positive direction of x-axis is rotated about a in anticlockwise direction through an angle of 15 degree

Answer 1

Answer:

Step-by-step explanation:

Angle of inclination of AB= 30 degrees

Angle of inclination of AB in new position =(30+15)degrees

$slope,\:m=tan45=1$

Equation of the line in new position is

$y-{y_1}=m(x-{x_1})$

y-0=1(x-2)

y=x-2

x-y-2=0