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c2 indices

hi could someone show me how you do the working for this, the answer is a5

(√a)3 multiplied by (√a7)
Reply 1
Avatar for Simba
Simba
16
(√a)3 multiplied by (√a7)


= a3/2 * a7/2

= a(3/2 + 7/2)

= a10/2

= a5

Hope this helps :smile: !

~~Simba
Reply 2
Avatar for stratomaster
stratomaster
OP
thanks but where did the 2 come from?
Reply 3
Avatar for Gaz031
Gaz031
15
stratomaster
hi could someone show me how you do the working for this, the answer is a5

(√a)3 multiplied by (√a7)

(a)3(a)7(\sqrt{a})^{3}(\sqrt{a})^{7}
=a32a72=a^{\frac{3}{2}}a^{\frac{7}{2}}
=a32+72=a^{\frac{3}{2}+\frac{7}{2}}
=a5=a^{5}
Reply 4
Avatar for Simba
Simba
16
√a = a1/2 :smile: ...

Hope this helps,

~~Simba
Reply 5
Avatar for stratomaster
stratomaster
OP
ok yes it does, thank you!

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