Find the value of determinant |{root 23+root 3,root 5,root 5},{root 15+root 46,5,root 10},{}|
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Given :
√23 + √3 √5 √5
√15 + √46 5 √10
3 + √115 √15 5
To find : value of determinant
Solution:
√23 + √3 √5 √5
√15 + √46 5 √10
3 + √115 √15 5
D = (√23 + √3 ) (5 * 5 - √15 √10) - √5 ( (√15 + √46)5 - ( 3 + √115) √10) + √5 ( (√15 + √46)√15 - ( 3 + √115)5)
= (√23 + √3 ) (25 - 5√6) - √5 ( 5√15 + 5√46 - 3√10 - 5√46) + √5 ( 15 + √46√15 - 15 - 5√115 )
= 25 √23 - 5√138 + 25√3 - 15√2 - 25√3 + 15√2 + 5√138 - 25√23
= 0
Value of Determinant = 0
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