Mathematics, 04.09.2020 14:01 lnorred2

If sinA+sin2A=x and cosA+COS2A=y, then prove that
(x^2+ y²). (x^2+ y^2- 3) = 2y

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If sinA+sin2A=x and cosA+COS2A=y, then prove that
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If sinA+sin2A=x and cosA+COS2A=y, then prove that (x^2+ y²). (x^2+ y^2- 3) = 2y

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Another question on Mathematics

If sinA+sin2A=x and cosA+COS2A=y, then prove that
(x^2+ y²). (x^2+ y^2- 3) = 2y