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Question -

Find the equation of the line passing through (2, 2√3) and inclined with x – axis at an angle of 75o.



Answer -

Given:

A line which ispassing through (2, 2√3), the angle is 75o.

By using the formula,

The equation of lineis [y – y1 = m(x – x1)]

Here, angle, θ =75o

The slope of the line,m = tan θ

m = tan 75o

= 3.73 = 2 + √3

The line passingthrough (x1, y1) = (2, 2√3)

The required equationof the line is y – y1 = m(x – x1)

Now, substitute thevalues, we get

y – 2√3 = 2+ √3 (x – 2)

y – 2√3 = (2+ √3)x – 7.46

(2 + √3)x – y – 4= 0

The equation of theline is (2 + √3)x – y – 4 = 0

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