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SPM Additional Mathematics (KSSM)

Question
Bahasa Melayu
Rajah 1 menunjukkan dua garis lurus $L_1$ dan $L_2$ yang dilukis pada satah Cartesan, dengan keadaan $L_1$ selari dengan $L_2$. Garis $L_1$ melalui titik $A(-4, 0)$ dan $D(-1, 6)$ serta membentuk sudut tirus $\alpha$ dengan arah positif paksi-$x$ di $A$. Garis $L_2$ memotong paksi-$x$ di $B(2, 0)$ dan membentuk sudut tirus $\beta$ dengan arah positif paksi-$x$ di $B$. Dengan menggunakan hubungan antara kecerunan suatu garis lurus dengan sudut yang dibentuk oleh garis itu dengan arah positif paksi-$x$, cari nilai $\tan\beta$.

English
Diagram 1 shows two straight lines $L_1$ and $L_2$ drawn on a Cartesian plane, where $L_1$ is parallel to $L_2$. The line $L_1$ passes through the points $A(-4, 0)$ and $D(-1, 6)$, and makes an acute angle $\alpha$ with the positive direction of the $x$-axis at $A$. The line $L_2$ cuts the $x$-axis at $B(2, 0)$ and makes an acute angle $\beta$ with the positive direction of the $x$-axis at $B$. Using the relation between the gradient of a straight line and the angle that the line makes with the positive direction of the $x$-axis, find the value of $\tan\beta$.
xyOL1L2αβA(-4, 0)D(-1, 6)B(2, 0)
[2 marks]
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Modelled on Selangor trial · Kertas 2 · Q9(a)

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Modelled on Selangor trial · Kertas 2 · Q9(a)

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