Questions asked by Aftab hassan

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If a pipe can fill a tank in 2 hours and another pipe can fill the same tank in 40 minutes.how much time in minutes is needed to fill the tank if both the pipe are working together?
Catch up meaning and its status in grammer?
The average of x,y,z and 40 is 10.what is the average of x,y,z?
Solve it by exponent principal?
Differentiate $\frac{d}{d x} e^{e^{2 x}}$ $d/dxe^(e^(2x))$ ?
Solve mcq and also explain the gradient?
Solve 22 and 24 number.it is simple differentiation but tell me what is mean by f(x) and g(x) here and how solve it.i am very worried.?
Solve it?when we differentiate it cosx convert into sinx then we put the value of x in function.how answere will be obtained.?
Explain the answere of marked mcq's?how these option are correct?
What is meaning of increasing and decreasing function?see the marked question?
Define function?
$I f : X \to Y$ $If:X rarr Y$ is a function,then the element of X are called?#
If $y = e^{x}$ $y=e^x$ ,then $f^{- 1} (x)$ $f^-1(x)$ is?
Determine domain and range? $f (x) = 2 x + 1$ $f(x)=2x+1$
Determine domain? $f (x) = 2 + \sqrt{x - 1}$ $f(x)=2+sqrt(x-1)$
$lim_(x rarr oo)(1/2)^x$ ?