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प्रश्न
`4sqrt(7) xx 2sqrt(3)` =
विकल्प
`6sqrt(10)`
`8sqrt(21)`
`8sqrt(10)`
`6sqrt(21)`
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उत्तर
`8sqrt(21)`
Explanation;
Hint:
`4sqrt(7) xx 2sqrt(3)` = `4 xx 2sqrt(7 xx 3)`
= `8sqrt(21)`
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संबंधित प्रश्न
Simplify.
`sqrt 7 - 3/5 sqrt 7 + 2 sqrt 7`
Divide and write the answer in simplest form.
`sqrt98 ÷ sqrt 2`
Divide and write the answer in simplest form.
`sqrt 125 ÷ sqrt 50`
Divide and write the answer in simplest form.
`sqrt 310 ÷ sqrt 5`
Simplify.
`4/7 sqrt 147 + 3/8 sqrt 192 - 1/5 sqrt 75`
Simplify the following using addition and subtraction properties of surds:
`3sqrt(75) + 5sqrt(48) - sqrt(243)`
Simplify the following using addition and subtraction properties of surds:
`5root(3)(40) + 2root(3)(625) - 3root(3)(320)`
Simplify the following using multiplication and division properties of surds:
`sqrt(3) xx sqrt(5) xx sqrt(2)`
Simplify the following using multiplication and division properties of surds:
`root(3)(27) xx root(3)(8) xx root(3)(125)`
If `sqrt(2)` = 1.414, `sqrt(3)` = 1.732, `sqrt(5)` = 2.236, `sqrt(10)` = 3.162, then find the values of the following correct to 3 places of decimals.
`sqrt(40) - sqrt(20)`
