How to do this?

JEE Advanced Discussion Forum › Algebra questions › How to do this?

#Mathematics #Algebra

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7 Answers

1

Rohan Ghosh ·2009-04-28 02:23:20

14-6âˆš5 = (3-âˆš5)²

9-4âˆš5=(âˆš5-2)²

thus the remaining term =âˆš4=2

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1

sparkle2009 ·2009-04-28 02:33:22

How to find the square root of a surd?

like 14-6âˆš5 = (3-âˆš5)^2

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1

Manas ·2009-04-28 02:37:14

hey see u can convert it into the (a+b)² format
that comes due to practise.

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1

Rohan Ghosh ·2009-04-28 02:37:15

i did it by observation

saw that 6âˆš5=2*3*âˆš5

and (3)²+(âˆš5)²=14

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9

Celestine preetham ·2009-04-28 02:37:44

its by simple observation sparkle

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1

noone ·2009-04-28 02:41:08

used to have a method naa in class 6 or 7 ...

by taking p+âˆšq = (a+b)²

then separtely equating rational and irrational terms.

jus as we do for complex no.s also ...

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sparkle2009 ·2009-04-28 02:41:46

Thanks everyone

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Your Answer

Basic Integral Calculus Operators Symbols Matrix Cases

√ √ || {} [] () → ~ ^ x x x → → ln log lg lim lim cos sin tan cot arcsin arccos arctan

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