Question
Download Solution PDFजर ABCD हा चक्रीय चतुर्भुज असेल, तर cos2A – cos2B – cos2C + cos2D चे मूल्य किती?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDF⇒ ? = cos2A – cos2B – cos2C + cos2D
⇒ ? = (cos A + cosB)(cos A – cos B) + (cos D – cos C)(cos D + cos C)
चक्रीय चतुर्भुजाचे विरुद्ध कोन पूरक असतात.
∴ cos2A – cos2B – cos2C + cos2D = 0Last updated on Jul 15, 2025
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