Class 11MathematicsTrigonometrical Ratios, Functions and IdentitiesMix Examples-Trigonometrical Ratios, Functions and Identities
EasyIf $\tan A + \cot A = 2$,then the value of $\tan^{4} A + \cot^{4} A$ is:
- A$2$
- B$1$
- C$4$
- D$5$
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