The equation of straigth lines which passes through the point (1,2) and makes an angle cos^-1(-1/3) with the x-axis is?
Thank You.

Question

The equation of straigth lines which passes through the point (1,2)
and makes an angle cos-1(-1/3) with the x-axis is?
Thank You

Rishabh Mittal · Accepted Answer

Dear Student ,

Please find below the solution to the asked query :

tan θ=sin θcos θ=1-cos2θcos θ=1-coscos-1-132coscos-1-13=1-19-13=89-13=-8=slope of line 
Equation of line isy-2=-8x-1y-2=-8x+8y+8x-10=0   ANS
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The equation of straigth lines which passes through the point (1,2) and makes an angle cos-1(-1/3) with the x-axis is? Thank You.

The equation of straigth lines which passes through the point (1,2) and makes an angle cos^-1(-1/3) with the x-axis is?
Thank You.