Question

Sin²30°+4Cot²45°-Sec²60°=?
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Answer 1

Answer:

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Answer 2

As we know,

sin 30° = 1/2

cot 45° = 1

sec 60° = 2

•°• sin²30°+4cot²45°-sec²60°

•°• (1/2)²+4(1)²-(2)²

•°• (1/4)+4-4

•°• (1/4).