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help me solve this function plz
here we have:
we need to solve this:
thx.:)
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hi AISSAISHAK
By 'solve' do you mean 'simplify'?
Extra brackets not needed
Or did you mean:
Let's try both
(i)
so
or
(ii)
so
Oh! That was a surprise!
Bob
Last edited by Bob (2011-01-13 02:52:30)
Children are not defined by school ...........The Fonz
You cannot teach a man anything; you can only help him find it within himself..........Galileo Galilei
Sometimes I deliberately make mistakes, just to test you! …………….Bob
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bob bundy, thx for ur quick reply
I meant this
I know the steps, what I dont know is how to compute this
coz this is where I was stuck! so is it equals to 0 (zero)?if not, can you show me the last steps till we get only "2" at the end by canceling or subtracting .. -->
annd can you tell me where can i find how to deal with exponents and natural log by learnin some rules/law about them
really big help if u show me the way!
cheers
Last edited by AISSAISHAK (2011-01-13 03:47:33)
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Hi AISSAISHAK;
coz this is where I was stuck! e^x+e^-x so is it equals to 0
Whatever you do, do not that!
In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.
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hi AISSAISHAK
but
because when you add the indices you get zero and anything to the power zero is 1.
As for
the top factorises to
and then the top and bottom brackets cancel out.
As for learning the rules why not start with
http://www.mathsisfun.com/algebra/exponents-logarithms.html
The main 'Maths Is Fun' pages are full of explanations and exercises.
Try the page and post again if you are still unsure about anything.
Bob
Last edited by Bob (2011-01-13 11:41:16)
Children are not defined by school ...........The Fonz
You cannot teach a man anything; you can only help him find it within himself..........Galileo Galilei
Sometimes I deliberately make mistakes, just to test you! …………….Bob
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hey thx bob , that was very helpful ..
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You're welcome,
Bob
Children are not defined by school ...........The Fonz
You cannot teach a man anything; you can only help him find it within himself..........Galileo Galilei
Sometimes I deliberately make mistakes, just to test you! …………….Bob
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