X sin3^ + y cos3^ = sin^ × cos ^ nd x sin^ = y cos ^ prove that x2 + y2 = 2

X sin3^ + y cos3^ = sin^ × cos ^ nd x sin^ = y cos ^ prove that x2 +

1.	X sin3^ + y cos3^ = sin^ × cos ^ nd x sin^ = y cos ^ prove that x2 + y2 = 2
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