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I was born to answer lhfs.


May
17
reviewed Reject suggested edit on Proof of this inequality
May
17
comment Absolutet Value Inequality with cases number line
A number line wouldn't be much of a solution. It can only be used to represent numbers. Depending on different contexts, it's used in different ways. Here, the question might be asking you to use a number line for representing the solution of this inequality.
May
17
comment Absolutet Value Inequality with cases number line
A number? I'm not sure if I perfectly understand your query. Do you mean a number line?
May
17
answered Absolutet Value Inequality with cases number line
May
17
comment what is the solution for this equation : $2^x-6(2)^{-x}=6$
If $t$ is negative, then $2^x$ will be negative for some real $x$, which is not possible.
May
17
answered what is the solution for this equation : $2^x-6(2)^{-x}=6$
May
17
answered Graph this function: F(x)=$-2^{|x|+1}$.
Apr
22
answered How to solve this inequality?
Apr
17
comment Trigonometric substitution
Oh, x^2/2 is the angle. OK.
Apr
17
comment Trigonometric substitution
did you mean $\frac{\sin^2(x)}2 = \frac{1}{2}(1 - \cos^2(x))$
Apr
13
answered Problem : Solve $|x^2+x-4| =|x^2-4| +|x|$
Apr
10
comment Proof of a claim on a continuous function in [0,1]
Brian... ${}{}{}$
Apr
4
awarded  Popular Question
Mar
19
accepted Prove that $\rm area(\triangle ABE) = area (ABCD)$
Mar
19
asked Prove that $\rm area(\triangle ABE) = area (ABCD)$
Mar
14
awarded  Nice Answer
Mar
5
answered if x^2 + 2x - 3 >= 0 then (x <= -3) V (x >= 1)
Mar
1
comment What should be added to $x^4 + 2x^3 - 2x^2 + x - 1$ to make it exactly divisible by $x^2 + 2x - 3$?
@HenningMakholm I'm a ninth grader from the same country as Mayank is, and we are taught polynomial division in the ninth grade.
Feb
17
answered Less than or equal sign
Feb
8
awarded  Nice Answer