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प्रश्न
tan 30° × tan ______° = 1
उत्तर
tan 30° × tan 60° = 1
Explanation:
tan 30° = `1/sqrt3`
tan 60° = `sqrt3`
Now,
`1/sqrt3 xx sqrt3 = 1`
⇒ tan 30° × tan 60° = 1
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