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Mathematics, 18.09.2019 20:30 ray1840

Which of the following statements is true?
a sin 30º = cos 30"
b. sin 35º = cos 55"
c. sin 60" = cos 60"
d sin 55° = cos 25°

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You know the right answer?
Which of the following statements is true?
a sin 30º = cos 30"
b. sin 35º = cos 55"

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