Question
Download Solution PDFA మరియు B రెండవ చతుర్భుజ కోణాలు అయినందున, sin A =
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFఇచ్చిన:
sin A =
sin B =
ఉపయోగించిన సూత్రం:
sin2A + cos2B = 1
cos (A − B) = cosAcosB + sinAsinB
సాధన:
⇒ sin A =
⇒ cosA=
కోణాలు 2వ చతుర్భుజంలో ఉన్నందున
⇒ cosA =
⇒ sin B =
⇒ cosB=
కోణాలు 2వ చతుర్భుజంలో ఉన్నందున
⇒ cosB =
ఇప్పుడు సూత్రం ప్రకారం..
⇒ cos (A − B) = cosAcosB + sinAsinB =
⇒ కాబట్టి, cos (A - B) విలువ
Last updated on Jun 17, 2025
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