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Question Number 92518 by I want to learn more last updated on 07/May/20

Answered by mr W last updated on 07/May/20

Commented by mr W last updated on 07/May/20

$$EC=1-\tan 25$$$$FC=1-\tan 20$$$$\tan \mathrm{\angle }FEC=\frac{FC}{EC}=\frac{1-\tan 20}{1-\tan 25}$$$$x=180-65-{\tan }^{-1}\frac{1-\tan 20}{1-\tan 25}=65°$$

Commented by I want to learn more last updated on 07/May/20

$$\mathrm{Thanks}\mathrm{sir}.\mathrm{I}\mathrm{really}\mathrm{appreciate}$$

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