Question
Download Solution PDFsin260° + cos230° - sin245° - 3sin290° का मान ज्ञात कीजिये।
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFदिया गया है:
sin260° + cos230° - sin245° - 3sin290°
प्रयुक्त अवधारणा:
गणना:
sin260° + cos230° - sin245° - 3sin290°
⇒ (√3/2)2 + (√3/2)2 - (1/√2)2 - {3 × (1)2}
⇒ 3/4 + 3/4 - 1/2 - 3
⇒ 3/2 - 1/2 - 3
⇒ (-2)
∴ sin260° + cos230° - sin245° - 3sin290° का अभीष्ट मान (-2) है।
Last updated on Jul 16, 2025
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