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CBSE Class 8 Answered

i cannot understand if we multiply square root 2 x square root 2 then answer should come root 4 but it is incorrect how?
Asked by ajayrath7 | 28 Jul, 2017, 07:32: AM
answered-by-expert Expert Answer
begin mathsize 16px style square root of 2 space cross times space square root of 2 space end root
equals square root of 2 cross times 2 end root
equals square root of 4
equals 2
As space square space root space of space 4 space is space 2.
Hence comma space if space we space multiply space square space root space of space same space number space
then space the space answer space will space be space the space number. end style
Answered by Sneha shidid | 28 Jul, 2017, 09:47: AM

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