Question
Download Solution PDFउन रेखाओं के बीच का कोण ज्ञात करें जिनके दिशा अनुपात (1, 2, - 2) और (0, 3, -4) हैं।
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Detailed Solution
Download Solution PDFअवधारणा:
दिशा अनुपात \(\left\langle {{a_1},\;{b_1},\;{c_1}} \right\rangle \) और \(\left\langle {{a_2},\;{b_2},\;{c_2}} \right\rangle \) के साथ रेखाओं के बीच का कोण इसके द्वारा दिया जाता है: \(\cos {\bf{\theta }} = \;\frac{{{{\bf{a}}_1}{{\bf{a}}_2} + \;{{\bf{b}}_1}{{\bf{b}}_2} + {{\bf{c}}_1}{{\bf{c}}_2}\;}}{{\sqrt {{\bf{a}}_{1\;}^2 + \;{\bf{b}}_1^2 + \;{\bf{c}}_1^2} \sqrt {{\bf{a}}_{2\;}^2 + \;{\bf{b}}_2^2 + \;{\bf{c}}_2^2} }}\)
Last updated on Jun 30, 2025
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