c2 indices Watch

stratomaster
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#1
Report Thread starter 13 years ago
#1
hi could someone show me how you do the working for this, the answer is a5

(√a)3 multiplied by (√a7)
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Simba
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#2
Report 13 years ago
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(√a)3 multiplied by (√a7)
= a3/2 * a7/2

= a(3/2 + 7/2)

= a10/2

= a5

Hope this helps !

~~Simba
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stratomaster
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#3
Report Thread starter 13 years ago
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thanks but where did the 2 come from?
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Gaz031
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#4
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(Original post by stratomaster)
hi could someone show me how you do the working for this, the answer is a5

(√a)3 multiplied by (√a7)
(\sqrt{a})^{3}(\sqrt{a})^{7}
=a^{\frac{3}{2}}a^{\frac{7}{2}}
=a^{\frac{3}{2}+\frac{7}{2}}
=a^{5}
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Simba
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#5
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#5
√a = a1/2 ...

Hope this helps,

~~Simba
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stratomaster
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#6
Report Thread starter 13 years ago
#6
ok yes it does, thank you!
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