Class 11MathematicsTrigonometrical Ratios, Functions and IdentitiesMaximum and minimum values of trigonometrical functions, Conditional trigonometrical identities
MediumThe equation $\sec^2 \theta = \frac{4xy}{(x + y)^2}$ is only possible when
- A$x = y$
- B$x < y$
- C$x > y$
- DNone of these
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