General Mathematics



  2. Question:Express the following as vulgar fractions:
(i) `0.^-6`
(ii) `0.37^--`
(iii) `0.053^---`
(iv) `3.142857^------` 
    Answer
    (i) `0.6^-` =`6/9` =`2/3`






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  3. Question:Find the square root of 1471369 
    Answer
    `:.  sqrt(1471369)` = 1213






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  4. Question:Evaluate: `sqrt(175.2976)` 
    Answer
    `:. sqrt(175.2976)` = 13.24






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  5. Question:Evaluate `sqrt(0.9)` upto places of decimal. 
    Answer
    `:. sqrt(0.9)` = 0.948






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  6. Question:Evaluate:
(i) `sqrt 48 xx sqrt 12` 
(ii) `sqrt 128/sqrt 162` 
    Answer
    (i) `sqrt 48 xx sqrt 12`

= `sqrt(48 xx 12)`

= `sqrt (2 xx 2 xx 12 xx 12)`

= `(2 xx 12)`

=24

(ii) `sqrt 128/sqrt 162`

= `sqrt(128/162)`

= `sqrt (64/81)`

=`8/9`






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