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Mathematics, 05.04.2020 03:23 strawberrymochi390

Which of the following statements is true?
a. sin 18° = cos 72°
b. sin 55° = cos 55°
c. sin 72° = cos 189
d. Both a and c.

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You know the right answer?
Which of the following statements is true?
a. sin 18° = cos 72°
b. sin 55° = cos 55°

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