Expand tan(2x)

Expand tan(2x)

$\tan (2 x)$

Apply the tangent double-angle identity.

$\frac{2 \tan (x)}{1 - \tan^{2} (x)}$

Simplify the denominator.

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Rewrite $1$ as $1^{2}$ .

$\frac{2 \tan (x)}{1^{2} - \tan^{2} (x)}$

Since both terms are perfect squares, factor using the difference of squares formula, $a^{2} - b^{2} = (a + b) (a - b)$ where $a = 1$ and $b = \tan (x)$ .

$\frac{2 \tan (x)}{(1 + \tan (x)) (1 - \tan (x))}$

$\frac{2 \tan (x)}{(1 + \tan (x)) (1 - \tan (x))}$

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Name

Name	five hundred thirty-six million eight hundred sixty-five thousand five hundred eight

Interesting facts

536865508 has 16 divisors, whose sum is 1279003284
The reverse of 536865508 is 805568635
Previous prime number is 17

Basic properties

Is Prime? no
Number parity even
Number length 9
Sum of Digits 46
Digital Root 1

Name

Name	six hundred eleven million four hundred thirty-four thousand three hundred eighty-eight

Interesting facts

611434388 has 16 divisors, whose sum is 1386561024
The reverse of 611434388 is 883434116
Previous prime number is 127

Basic properties

Is Prime? no
Number parity even
Number length 9
Sum of Digits 38
Digital Root 2

Name

Name	one billion six hundred seventy-six million six hundred sixty-three thousand six hundred forty-six

Interesting facts

1676663646 has 32 divisors, whose sum is 3834325248
The reverse of 1676663646 is 6463666761
Previous prime number is 2203

Basic properties

Is Prime? no
Number parity even
Number length 10
Sum of Digits 51
Digital Root 6

Simplify square root of 49y^5

Determine if Continuous x^2-5y^2=6

Factor over the Complex Numbers tan(70)-(sin(70))/(cos(70))

Find the Inverse f(x)=5sin(x-7)

Expand Using Sum/Difference Formulas cos((19pi)/12)

$[\begin{array}{c} x^{2} & \frac{1}{2} \\ \sqrt{π} & \int x d x \end{array}]$