Page 112 - Grade 10 C.Math

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-s_ ;8{ ;DaGwL sxL tYox¿ (some facts about surds)
-c_ √7 ;8{sf] j|md 4 xf] eg] √11 ;8{sf] j|md 2 xf] .

-cf_ √17 Ps k"0f{ ;8{ (pure surd) sf] pbfx/0f xf] h;n] cgfg'kflts ;ªVofnfO{
\
hgfpF5 .
Curriculum Development Centre
-O_ 4√5 Ps ldl>t ;8{sf] pbfx/0f xf] h;n] cfg'kflts ;ª\Vof (rational number)
/ k"0f{ ;8{ (pure surd) sf] u'0fg kmnnfO{ hgfp5 .
F
-O{_ 2√5 / 6√5 ;dfg ;8{x¿ x'g\ lsgls logLx¿sf] d"n lrx\gleq Pp6} ;ª\Vof
5 .

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-p_ √7 / √11 c;dfg ;8{x¿ x'g lsgls logLx¿sf] d"n lrxgleq km/s km/s
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;ªVofx¿ 5g . ;fy} d"n lrxgx¿ klg km/s km/s 5g .
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-pm_ ;8{x¿sf] jmd d"n lrxgdf /x]sf cªsn] hgfpF5g, h:t M 5, √6, √9
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jmdzM bf];|f], t];|f] / kfFrf}F jmdsf ;8{x¿ xg .
pbfx/0fx¿

1 = √27 / √ ;8{x¿sf] j|md n]Vg'xf];\ .
;dfwfg
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√27 df ;8{sf] jmd 4 5 . To:t, √ df ;8{sf] jmd n 5 .
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2. √288 nfO{ ;/n ¿kdf JoSt ug'{xf];\ .
;dfwfg
√288 = √2 × 12 × 12 = 12√2

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3. ldl>t ;8{nfO{ k"0f{ ;8{sf ¿kdf JoSt ugxf];\ .

-s_ -v_

;dfwfg

-s_ = × = × × × =
×

-v_ = × = × = 5y

ul0ft, sIff – 10 109