Find the value of tan square 60 + 3(cos) square 30
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Answer: tan²60° + 3 cos²30°
= ( √3 )² + 3 × ( √3 / 2 )²
= 3 + 3 × 3 / 4
= ( 12 + 9 ) / 4
= 21/4. [ • Required Answer ]
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tan60° = √3
cos30° = √3 / 2
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