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Let me keep on reading: ...., it is common to abbreviate an expression such as "the function f defined by f(x) = x^2+x" to "the function f(x)=x^2+x". A function f is a rule that assigns .....

Now I am looking at an example in a book. 'Graph the function f(x)=sinx+0.01cos100x' Another example in the same book. 'f(x)=(x^2-x-2)/(x-2) This function is discontinuous at a=2, since f(2) is not defined.'

You are contradicting yourself. Before you said f(x) is the rule of the function f. Now you are saying f(x) is the value of the function f at the point 'x'. A rule cannot be a value.

It isn't a constant function because a constant function cannot be odd.

you got it right

Evaluate \int_{-\frac{4}{\pi }}^{\frac{4}{\pi }}\left (tan^{-1}x \right+tan^{-1}\frac{1}{x} )dx

Evaluate \int_{-\pi }^{\pi }x^{3}cos\left ( 3x \right )dx

\int e^{x}sinxdx=\frac{e^{x}}{2}\left ( sinx-cosx \right )+c

your question imo is about a dc motor, not a dc generator

Usually we just say function f(x), we don't say the rule f(x) of the function

the answers

\large f\left ( x \right ) is an odd function and \large f\left ( x+2 \right )=-f\left ( x \right ). When \large x\epsilon \left ( 0,1 \right ), \large f\left ( x \right )=2^{x}. Evaluate \large f\left ( log_{\frac{1}{2}}18 \right ).

If you are giving up the gradient question, try the next one that you asked for. Sorry, it was Drongoski asking for another question.

+3

You don't need to use l'Hospital's Rule. However, it gives you a quick answer if you know how to use it. The question remains open. May be get help from wolframalpha. When you finish with this question, do the following one.

Hope it is right Not necessarily straight lines, depends on physical size of magnet and solenoid, as well as relative motion.

Find the gradient of a tangent line to the graph of \LARGE 3x^5-x^3-2x^3y-3x^2y+2y^2+y=0 at x=1.

AAEldar had the answers first

Re: 回复: Re: 2x Maths Questions OK Try p^2 + q^2 + r^2 = 5 p + q + r =1 p + 2q - r = 5

i think real solutions are required?