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MATHS True False[1 Marks ]

PART - 2 CH - 9 Straight Lines · Rajasthan Board (RBSE) STD 11 Science (Rajasthan - English Medium). 7 questions.

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7 questions · self-marked practice — reveal the answer and mark yourself.

Question 11 Mark
The distance of point $\left(x_1, y_1\right)$ from line $a x+b y+c=$ 0 is given by
$d=\frac{a x_1+b y_1+c}{\sqrt{a^2+b^2}}$
Answer
true
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Question 21 Mark
Equation of line passing through points ( $\left.x_1, y_1\right)$ and $\left(x_2\right.$, $\left.y_2\right): y-y_1=\frac{y_2-y_1}{x_2-x_1}\left(x-x_1\right)$
Answer
true
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Question 31 Mark
Equation of line passing through point $\left(x_1, y_1\right)$ having slope $m$ is given by $y-y_1=m\left(x-x_1\right)$.
Answer
false
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Question 41 Mark
Equation of line perpendicular to $x$-axis and at a distance $b$ unit from y-axis $x=b$ or $x=-b$.
Answer
true
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Question 71 Mark
Equation of line perpendicular to line $a x+b y+c=0$ is given by $b x+a y+\lambda=0$, where $\lambda$ is a constant.
Answer
false
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