Question
Download Solution PDFयदि A2+B2+C2=0 है, तो निम्नलिखित का मान क्या है?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFसंप्रत्यय:
जब A2 + B2 + C2 = 0 है, इसका अर्थ A = B = C = 0 (चूँकि वास्तविक संख्याओं के वर्ग ऋणात्मक नहीं होते हैं) है।
सारणिक की गणना के लिए आव्यूह में A, B और C के मान प्रतिस्थापित करें
गणना:
चूँकि, Cos0 =1
इस प्रकार आव्यूह बन जाता है
अब सारणिक = 1[(1×1 - 1×1)] - 1[(1×1 - 1×1)] + 1[(1×1 - 1×1)]
= 1(0) - 1(0) + 1(0) = 0
∴ सारणिक का मान 0 है।
इसलिए, सही उत्तर विकल्प 2 है।
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