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Find the values of k if area of triangle is 4 sq. units and vertices are(k,0),(4,0),(0,2) |
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Answer» SOLUTION :Given that`Delta=+-4` `implies1/2|[K, 0,1],[4, 0,1],[0, 2,1]|=+-4` `1/2[1/2|[k,1],[4,1]|]=+-4` (on expanding ALONG `C_2`) `implies -(k-4)= +-4` `implies 4-k= +-4 ` `implies k=4overset-+4=4-4` or 4+4=0 or 8 |
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