Class 11MathematicsTrigonometrical Ratios, Functions and IdentitiesMix Examples-Trigonometrical Ratios, Functions and Identities
Difficult$x \in [0, 2\pi]$ के लिए $|\sqrt{2 \sin^4 x + 18 \cos^2 x} - \sqrt{2 \cos^4 x + 18 \sin^2 x}| = 1$ को संतुष्ट करने वाले $x$ की संख्या है
- A$2$
- B$6$
- C$4$
- D$8$
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