Question
Download Solution PDFtan A = 10/15 అయితే, cos2 A యొక్క విలువ ఎంత అవుతుంది?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFఇచ్చిన:
tan A = 10/15
లెక్కింపు:
tan A = ఎదుటి భుజము/ఆసన్న భుజం
పైథాగరస్ సిద్ధాంతాన్ని ఉపయోగించగా
కర్ణం2 = ఎదుటిభుజం2 + ఆసన్న భుజం2
కర్ణం2 = 102 + 152
కర్ణం = √325
cos A = ఆసన్న భుజం/కర్ణం
cos A = 15/√325
cos2 A = 225/325
∴ ఎంపిక 3 సరైన సమాధానం.
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