Maths, Addmaths and Statistics: Post your doubts here!

[hellcat]

u giving paper in nov??

yes

 

[Bilal Khan]

yes

well,best of luck!!!!

 

[hellcat]

well,best of luck!!!!

thank u sooo much

did u find the solution?

 

[Bilal Khan]

thank u sooo much

did u find the solution?

welcome!!!!
no yaar.

 

[hellcat]

welcome!!!!
no yaar.

i still appreciate that u tried to help sir
thanks

 

[Bilal Khan]

i still appreciate that u tried to help sir
thanks

no problem.
and dont call me sir.
u need help in computer studies???

 

[zainabkhann]

Solve 8^2/3
2/3 is the power of 8, how should i solve this?

 

[Bilal Khan]

Solve 8^2/3
2/3 is the power of 8, how should i solve this?

take cube root of 8.
the answer is 2.
then multply 2 by 2.
so the answer is 4.

 

[leosco1995]

Solve 8^2/3
2/3 is the power of 8, how should i solve this?

You need to know the difference between the numerator and denominator of the fraction. The denominator is the root value (in this case, cube root) and the numerator is what you power the value with. The order of doing these two things doesn't matter.

So the answer in this case is the (cube root of 8)^2.

 

[Bilal Khan]

Solve 8^2/3
2/3 is the power of 8, how should i solve this?

a little exercise for u.
solve this:
y=px^2+qx
(make x the subject of the formula)

 

[zainabkhann]

a little exercise for u.
solve this:
y=px^2+qx
(make x the subject of the formula)

Omg i can never do questions which say makee x or y the subject of the formula, so confusing, help mee

 

[zainabkhann]

You need to know the difference between the numerator and denominator of the fraction. The denominator is the root value (in this case, cube root) and the numerator is what you power the value with. The order of doing these two things doesn't matter.

So the answer in this case is the (cube root of 8)^2.

thankyou for the explanation

 

[zainabkhann]

take cube root of 8.
the answer is 2.
then multply 2 by 2.
so the answer is 4.

thankyou

 

[zainabkhann]

guys what howcome the answer is this? please explain, is it because the 4 is simplified or what.

 

[Hammad Siddiqi]

guys what howcome the answer is this? please explain, is it because the 4 is simplified or what.

Thats so simple
12 has been factorised into 4 and 3
[square root](4*3)
so the square root of 4 is 2.
There is no real square root of 3.. so it will remain as it is..
so it makes 2 x [square root of 3]

 

[zainabkhann]

guys for the syllabus of math calculator D, do we need to learn to rationalise the denominator for surds?

 

[zainabkhann]

Thats so simple
12 has been factorised into 4 and 3
[square root](4*3)
so the square root of 4 is 2.
There is no real square root of 3.. so it will remain as it is..
so it makes 2 x [square root of 3]

Thanks so could you tell me in general, is the number which is not simplifed suppose to be in the square root bracket?

 

[leosco1995]

guys for the syllabus of math calculator D, do we need to learn to rationalise the denominator for surds?

It's only required for Add. Math.

 

[Bilal Khan]

Omg i can never do questions which say makee x or y the subject of the formula, so confusing, help mee

 

[Bilal Khan]

Thanks so could you tell me in general, is the number which is not simplifed suppose to be in the square root bracket?

no,its not necessary.
u could put it in brackets for ur easiness.