Question
Download Solution PDFcot 15° cot 25° cot 45° cot 75° cot 65° এর মান কত?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFপ্রদত্ত:
cot 15° cot 25° cot 45° cot 75° cot 65°
ব্যবহৃত সূত্র:
গণনা:
cot 15° cot 25° cot 45° cot 75° cot 65°
⇒ cot 15° x cot 25° x cot 45° x cot (90° - 15°) x cot (90° - 25°)
⇒ cot 15° x cot 25° x cot 45° x tan 15° x tan 25°
⇒ 1 x 1 x 1 = 1
∴ প্রয়োজনীয় ফলাফল 1
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