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febylailani
 3 years ago
is V25 = ±5 always? why?
febylailani
 3 years ago
is V25 = ±5 always? why?

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febylailani
 3 years ago
Best ResponseYou've already chosen the best response.0V25 = \[\sqrt{25}\]

akash123
 3 years ago
Best ResponseYou've already chosen the best response.0actually it denotes positive square root of 25

lgbasallote
 3 years ago
Best ResponseYou've already chosen the best response.0@akash123 you're talking about principal square roots...

Chlorophyll
 3 years ago
Best ResponseYou've already chosen the best response.1Because 5² = (=5)² = 25

akash123
 3 years ago
Best ResponseYou've already chosen the best response.0yes it's... but if anyone use this symbol of sqrt then it implies positive sqrt only eg as we write sqrt(sin^2x) = I sinx I

lgbasallote
 3 years ago
Best ResponseYou've already chosen the best response.0(=5)^2? interesting

akash123
 3 years ago
Best ResponseYou've already chosen the best response.0I think it's a convention only and moreover it's frequently used in calculus

Chlorophyll
 3 years ago
Best ResponseYou've already chosen the best response.1So YES, the even root always yield 2 results :)

Chlorophyll
 3 years ago
Best ResponseYou've already chosen the best response.1It's basic Pre Algebra!

Chlorophyll
 3 years ago
Best ResponseYou've already chosen the best response.1Because 5² = (5)² = 25

akash123
 3 years ago
Best ResponseYou've already chosen the best response.025= 5*5 and 25 =(5)* (5)

febylailani
 3 years ago
Best ResponseYou've already chosen the best response.0i know that. i mean... argh. i cant speak english very well. but i think that's enough thanks for your hardwork xD
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