List questions from fractions

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Is 5/10/20/40 a valid mathematical expression?

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Proof: $\cot(7.5^\circ) = \sqrt2 +\sqrt3 + \sqrt 4 + \sqrt6$

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A simple question about an expression with square roots

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Positive integers $d_1$, $d_2$, $\ldots$, $d_n$ divide $1995$. Prove that, for some $i,j$, the numerator of $\dfrac{d_i}{d_j}$ is at least $n$.

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Inequality with $ab + bc + ca = 1$

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Trignometric Equality Proof

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Logarithm and modulus inequality

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Finding the Derivative of $\arctan \frac{x}{a - \sqrt{a^2 - x^2}}$

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Can we divide two terms in finding solution for Linear Inequalities?

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Simplify $\frac1{\sqrt{x^2+1}}-\frac{x^2}{(x^2+1)^{3/2}}$

Published on 27 Aug 2017 - 13:57

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Let $a = \frac{9+\sqrt{45}}{2}$. Find $\frac{1}{a}$

Published on 27 Aug 2017 - 17:01

698

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Clare had birthday party and invited 9 of her closest friends.

Published on 30 Aug 2017 - 6:58

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Prove: $\frac{\tan{x}}{1-\cot{x}} + \frac{\cot{x}}{1-\tan{x}}=\sec{x}\csc{x}+1$

Published on 03 Sep 2017 - 15:40

1.5k

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Fractions with sum 1

Published on 04 Sep 2017 - 7:49

List Question

How do I compute the limit of a radical outside of a fraction?

Is 5/10/20/40 a valid mathematical expression?

Proof: $\cot(7.5^\circ) = \sqrt2 +\sqrt3 + \sqrt 4 + \sqrt6$

A simple question about an expression with square roots

Positive integers $d_1$, $d_2$, $\ldots$, $d_n$ divide $1995$. Prove that, for some $i,j$, the numerator of $\dfrac{d_i}{d_j}$ is at least $n$.

Inequality with $ab + bc + ca = 1$

Trignometric Equality Proof

Logarithm and modulus inequality

Finding the Derivative of $\arctan \frac{x}{a - \sqrt{a^2 - x^2}}$

Can we divide two terms in finding solution for Linear Inequalities?

Simplify $\frac1{\sqrt{x^2+1}}-\frac{x^2}{(x^2+1)^{3/2}}$

Let $a = \frac{9+\sqrt{45}}{2}$. Find $\frac{1}{a}$

Clare had birthday party and invited 9 of her closest friends.

Prove: $\frac{\tan{x}}{1-\cot{x}} + \frac{\cot{x}}{1-\tan{x}}=\sec{x}\csc{x}+1$

Fractions with sum 1

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