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CBSE Class 9 Answered

(3+underroot3) (3-underroot3
Asked by rajveersingh78844 | 27 Sep, 2020, 12:44: PM
answered-by-expert Expert Answer
To find the value of (3 - root3)(3 + root3)
Since, (a - b)(a + b) = a2 - b2
open parentheses 3 minus square root of 3 close parentheses open parentheses 3 plus square root of 3 close parentheses
equals open square brackets 3 squared minus open parentheses square root of 3 close parentheses squared close square brackets
equals 9 minus 3
equals 6
Hence comma space open parentheses 3 minus square root of 3 close parentheses open parentheses 3 plus square root of 3 close parentheses equals 6
Answered by Renu Varma | 27 Sep, 2020, 12:56: PM
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