Question
Find the equation of a line for which:
$\text{p}=4,\alpha=150^\circ$
$\text{p}=4,\alpha=150^\circ$
$\text{x}\cos\alpha+\text{y}\sin\alpha=\text{P}$
$\Rightarrow\text{x}\cos150^\circ+\text{y}\sin150^\circ=4$
$\Rightarrow-\text{x}\times\frac{\sqrt3}{2}+\text{y}\times\frac{1}{2}=4$
$\Rightarrow-\sqrt{3\text{x}}+\text{y}=8$
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$2\sec\text{x}+3\cot\text{x}-4\tan\text{x}$
Find the middle term in the expansion of:
$\Big(\text{x}^2-\frac{2}{\text{x}}\Big)^{10}$