Comedk
Trigonometric Ratios And Identities
COMEDK 2026 Morning Shift
MCQ+1 / -02026
If $\sin A+\sin 2 A=x$ and $\cos A+\cos 2 A=y$ then the value of the expression $\left(x^2+y^2\right)\left(x^2+y^2-3\right)$ equals
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