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प्रश्न
Determine which of the following pair of angles is co-terminal.
900°, −900°
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उत्तर
900°, −900°
900°– (– 900°) = 900° + 900°
= 1800°
= 5(360°),
which is a multiple of 360°.
∴ The given pair of angles is co-terminal.
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