# Expand tan(2x)

Expand tan(2x)
Apply the tangent double-angle identity.
Simplify the denominator.
Rewrite as .
Since both terms are perfect squares, factor using the difference of squares formula, where and .
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### Name

Name one hundred seventy-three million eight hundred seventy-seven thousand two hundred

### Interesting facts

• 173877200 has 256 divisors, whose sum is 1448668800
• The reverse of 173877200 is 002778371
• Previous prime number is 5

### Basic properties

• Is Prime? no
• Number parity even
• Number length 9
• Sum of Digits 35
• Digital Root 8

### Name

Name three hundred seventy million five hundred eighty-two thousand two hundred sixty-one

### Interesting facts

• 370582261 has 4 divisors, whose sum is 423522592
• The reverse of 370582261 is 162285073
• Previous prime number is 7

### Basic properties

• Is Prime? no
• Number parity odd
• Number length 9
• Sum of Digits 34
• Digital Root 7

### Name

Name four hundred sixty-four million six hundred eight thousand five hundred forty-six

### Interesting facts

• 464608546 has 4 divisors, whose sum is 696912822
• The reverse of 464608546 is 645806464
• Previous prime number is 2

### Basic properties

• Is Prime? no
• Number parity even
• Number length 9
• Sum of Digits 43
• Digital Root 7