Class 11MathematicsTrigonometrical Ratios, Functions and IdentitiesMix Examples-Trigonometrical Ratios, Functions and Identities
MediumIf $\cosh 2x = 199$,then $\coth x$ equals
- A$\frac{5}{3 \sqrt{11}}$
- B$\frac{5}{6 \sqrt{11}}$
- C$\frac{7}{3 \sqrt{11}}$
- D$\frac{10}{3 \sqrt{11}}$
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