Use, 0 = 60°, to write the rotated conic section given below, in the x'y'-plane. x² - y² = 9 Select one: O a. (x'cos0)²-(y' sine)² - 9 = 0 b. 2²-²-9=0 ()² O c. 2(y')²(x')² - 18 = 0 O d. (x)² + 2√3x'y' - (y')² + 18 = 0 Clear my choice

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