2022年5月15日 · I can't comment on your specific calculations above but Sometimes with calculators to keep an answer 'exact' you have to put down your calculator and use your skills with surds, trig identities and constants like pi to manipulate the calculation and produce the required simplified results. Even something as simple as pi x root(2) will only ...

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I really don't understand how to do surds. An example of a question I have is: 5[5 can be written in the form of 5k (can't do it on a computer but 'k' is a power). Find the value of k. [= square root Any ideas?

As above, you have [tex]\displaystyle \frac{\sqrt{7}}{\sqrt{3}}-\frac{\sqrt{3}}{\sqrt{7}} + \frac{\sqrtr{36}}{\sqrt{21}}[/tex] Now, dealing with the first two terms ...

2024年5月22日 · (the button converts fractions/surds into decimals, and back again) (edited 13 years ago) 0 Report. Reply ...

2023年6月14日 · Working out R first is almost always the simplest and quickest thing to do, and in an exam they're not going to give you ridiculous numbers-presumably in the exam paper you had 2 numbers to add which gave 68 and the square root of this is 2 17 2\sqrt{17} 2 17 . You could have written that down faster than typing in the decimal digits from your ...

You can simply both of these root 75 = root 3 x root 25 root 27 = root 3 x root 9 We know root 9 and root 25, so this is 5root3 + 3 root 3 which is just 8 root 3

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Hello I am going to sit an IGCSE Maths exam, and I have bought a big text book for IGCSE. I'm aware that I will have to cover surds. However, my book doesn't really tell me how th

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