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May
10
comment Number theory digit sum
math.stackexchange.com/questions/587783/…
May
10
comment Find the limit : $\lim\limits_{x \to 0} \left( \frac{\sin x}{x} \right) ^{\frac{1}{x^2}}$
possible duplicate of Finding the limit $\displaystyle\lim_{x\to 0+} \left(\frac{\sin x}x\right)^{1/{x^2}}$
May
10
comment $1 + \frac34 + \frac34.\frac58 + \frac34.\frac58.\frac7{12} + … = ?$
Related : math.stackexchange.com/questions/746388/…
May
10
comment Find the equation of the tangent line
@user3200098, What are the unknown(s) here. We need to form the equation of a Straight line, right?
May
10
answered Find the equation of the tangent line
May
10
answered how do i transform this equation into the form a+bi
May
10
answered Last 3 digits of $3^{999}$
May
10
comment How to find out the equation whose roots are trigonometric?
@user36790, Have a look into math.stackexchange.com/questions/498600/…, math.stackexchange.com/questions/763128/exact-value-for-cos-36, cut-the-knot.org/pythagoras/cos36.shtml
May
10
comment Proving a Trigonometrical Identity
@Foga, The formula in the first line is mathworld.wolfram.com/WernerFormulas.html
May
10
comment How to find out the equation whose roots are trigonometric?
@user36790, Do you know how expand $$\cos nx$$ in terms of $\cos x$? Also, may I request you to supply a few concrete Questions?
May
10
comment Find real solutions for a mod equation with power
@barakmanos, $$0^0=\frac00$$ en.wikipedia.org/wiki/Indeterminate_form#Indeterminate_form_00
May
10
comment Find real solutions for a mod equation with power
@barakmanos, thanks for pointing out
May
10
revised Find real solutions for a mod equation with power
added 15 characters in body
May
10
answered Find real solutions for a mod equation with power
May
10
comment Verify the identity: $\tan^{-1} x +\tan^{-1} (1/x) = \pi /2$
math.stackexchange.com/questions/610261/…
May
10
comment Values of $a$ that satisfy inequality
Are you aware of the condition mentioned in the last comment
May
10
comment Values of $a$ that satisfy inequality
What you've done is the sufficiency, not necessity. For example $$Ax^2+Bx+C>0$$ we don't need $Ax^2+C>0$ and $Bx>0$ separately. $$Ax^2+Bx+C>0$$ will be held if $x>$max$(p,q)$ or $x<$min$(p,q)$ where $p,q$ are the roots of $Ax^2+Bx+C=0$
May
10
comment Help needed with trigonometric identity
@FisiaiLusia, How about this?
May
10
answered Help needed with trigonometric identity
May
10
answered How to find out the equation whose roots are trigonometric?