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2. Attempt the following:[2 marks each(1) Find the value of 32 sin 54°cot 18ocos 36°Ans. |
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Answer» tan 72° sin 54°3 × ----------- - 2 × ---------- cot 18° cos 36° tan (90-18)° sin (90 - 36)3 × ------------------ - 2 × --------------- cot 18° cos 36° cot 18 cos 36°3 × ----------- - 2 × ---------- cot 18° cos 36° 3 × 1 - 2 × 1 3 - 2 1 |
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