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Question Number 114656 by vylollloll last updated on 20/Sep/20

$$2tanx-1=1$$$$\iff 2tanx=1+1$$$$tanx=\frac{2}{2}=1$$

Commented by vylollloll last updated on 20/Sep/20

Commented by bobhans last updated on 20/Sep/20

$$5\cot 10x-1000=1000$$$$5\cot 10x=1000+1000$$$$5\cot 10x=2000\Rightarrow \cot 10x=\frac{2000}{5}=400$$

Answered by 1549442205PVT last updated on 20/Sep/20

$$\mathrm{tanx}=1\iff \mathrm{x}=\frac{\pi }{4}+\mathrm{k}\pi$$

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