Question
Download Solution PDFমান নির্ণয় করুন: 2 tan 2 45° + cos 2 30° - sin 2 60°
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFপ্রদত্ত:
আমাদের নির্ণয় করতে হবে, 2 tan 2 45° + cos 2 30° - sin 2 60°
অনুসৃত সূত্র:
tan45° = 1
Cos30° = √3/2
Sin60° = √3/2
গণনা:
2 tan 2 45° + cos 2 30° - sin 2 60°
⇒ 2 x 1 2 + (√3/2) 2 - (√3/2) 2
⇒ 2 + 3/4 - 3/4
⇒ 2
∴ 2 tan 2 45° + cos 2 30° - sin 2 60° এর মান 2 হবে।
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