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Question Number 78887 by gopikrishnan last updated on 21/Jan/20

$$ifteta={\tan }^{-1}\left(7\right)then\sec tetais$$

Commented by jagoll last updated on 21/Jan/20

$$\tan \left(\theta \right)=7$$$$\mathrm{you}\mathrm{need}\sec \left(\theta \right)$$$$\sec \left(\theta \right)=\pm \sqrt{1+\tan {}^2\left(\theta \right)}$$

Commented by jagoll last updated on 21/Jan/20

$$\sec \left(\theta \right)=\pm 5\sqrt{2}$$

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