Question
Download Solution PDFयदि और det (A2) = 64 है, तो x किसके बराबर है?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFसंकल्पना:
यदि
|A| = a11 × a22 – a21 × a12
|An| = |A|n
गणना:
दिया गया है कि,
⇒ |A| = x2 - 8 .... (1)
दिया गया है |A2| = 64
⇒ |A|2 = 64 [∵ |An| = |A|n]
⇒ |A| = (64)1/2 = 8 ....(2)
समीकरण 1 और 2 से
⇒ x2 - 8 = 8
⇒ x2 = 16
⇒ x = ± 4Last updated on Jun 30, 2025
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