Which equation shows that the Pythagorean identity is true for 0=270 degrees. select the equation that is in the form sin^2 0+cos^2 0=1

Which equation shows that the Pythagorean identity is true for 0270 degrees select the equation that is in the form sin2 0cos2 01 class=
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Answer:

c. (-1)²+0²=1

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