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` 7- 30sqrt ( - 2 ) ` का वर्गमूल निकालिये |

Answer» `{:( 7 - 30 sqrt(-2)=7-30sqrt(2i) ),( = 5^ 2 (3sqrt2i)^2 - 2.5.3 sqrt2i ) ,( = (5-3sqrt2i)^2 ) ,( therefore sqrt(7-30sqrt(-2)) = pm ( 5-3sqrt2i) ) , ( ):} :| {:("Rough" = (30sqrt2)/(2) = 15sqrt2) , ( 3"," 5 sqrt2 to 3i"," 5sqrt2 to 9 i ^ 2 + 50 = 41 ) , ( 5"," 3sqrt2 to 3sqrt2i "," 5 to 25 + 18 i^2 = 7 ) , (1"," 15 sqrt2to 1"," 15 sqrt2i ):}`


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