Page 114 - Grade 10 C.Math

9.2 ;8{x¿sf] ;/nLs/0f (Simplification of surds)

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lgDg lnlvt k|Zgx¿df 5nkmn u/L lgisif{ kTtf nufpgxf];\ M

\
s] √2 / √18 ;dfg ;8{x¿ x'g <

s] √5 / 2√5 sf] j|md Pp6} 5 <
= 4 × 8√2 + 4 × 5√2 Development Centre
s] √2 + √18 = √20 xG5 <
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s] √2 + √18 = 4 √2 x'G5 <

;8{x¿sf] hf]8 lj|mofdf, ;8{sf] j|md tyf d"n lrx\g leqsf] kl/df0f pxL ePdf
dfq hf]8 ug{ ;lsG5 . cyf{t ;dfg ;8{x¿ dfq hf]8\g ;lsG5 .
\

pbfx/0fx¿

1. hf]8 ugxf];\ M 4√128 + 4√50
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;dfwfg

oxfF, √128 = √64 × 2 = 8√2

√50 = √25 × 2 = 5√2

To;}n], 4√128 + 4√50
Curriculum \ \

= 32√2 + 20√2

= (32 + 20)√2

= 52√2

;8{x¿sf] 36fp lj|mofdf ;8{sf] j|md tyf d"n lrxgleqsf] kl/df0fx¿ pxL ePdf
dfq 36fpg ;lsG5 . cyf{t ;dfg ;8{x¿ dfq 36fpg ;lsG5 .

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2. ;/n ug'xf];\ M

√48a b + √243a b − √1875a b

ul0ft, sIff – 10 111