I need to see how the answer is obtained. Thanks for helping.
Surds and Indices
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JiaGengMaths
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Surds and Indices
Given that 3^(7/2)+3^(5/2)+3^(3/2)+42(3^1/2) may be expressed as 3^k find the value of k. (ans given states k=4.5)
I need to see how the answer is obtained. Thanks for helping.
I need to see how the answer is obtained. Thanks for helping.
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maggiemagnet
- Posts: 358
- Joined: Mon Dec 08, 2008 12:32 am
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Re: Surds and Indices
Start by factoring out the square root. Then add up what's left and put that into "a power of three" form.Given that 3^(7/2)+3^(5/2)+3^(3/2)+42(3^1/2) may be expressed as 3^k find the value of k. (ans given states k=4.5)
I need to see how the answer is obtained. Thanks for helping.
