दिखाइए की रेखाएं overset r =( hati + hat...

दिखाइए की रेखाएं `overset_ r =( hati + hatj -hatk ) + lambda ( 3hati -hatj ) ` और ` (x+2)/( 4) =( y-1)/(3)= ( z+1)/( -2) ` प्रतिच्छेद है और उनका प्रतिच्छेद बिंदु भी ज्ञात कीजिए|

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