Mathematics · Inverse Trigonometric Functions

The value of 4 tan-1(15) - tan-1(170) + tan-1(199) is equal to:

Verified Solution4 OptionsUpdated: October 2026👁️1 View

1π3
2π4✓
3π6
4π12

Correct answer

π4

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The value of 4 tan-1(15) - tan-1(170) + tan-1(199) is equal to:

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The value of 4 tan-1(15) - tan-1(170) + tan-1(199) is equal to:

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