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  2. Tax Deduction and Collection Account Number - Wikipedia

    en.wikipedia.org/wiki/Tax_Deduction_and...

    TDS/TCS returns will not be accepted if TAN is not quoted and challans for TDS/TCS payments will not be accepted by banks. Failure to apply for TAN or not quoting the same in the specified documents attracts a penalty of ₹10,000 No documents are required to be filed with the application for allotment of TAN.

  3. Total acid number - Wikipedia

    en.wikipedia.org/wiki/Total_Acid_Number

    The total acid number (TAN) is a measurement of acidity that is determined by the amount of potassium hydroxide in milligrams that is needed to neutralize the acids in one gram of oil. [1] It is an important quality measurement of crude oil. The TAN value indicates to the crude oil refinery the potential of corrosion problems.

  4. Transaction authentication number - Wikipedia

    en.wikipedia.org/wiki/Transaction_authentication...

    The bank verifies the TAN submitted against the list of TANs they issued to the user. If it is a match, the transaction is processed. If it is not a match, the transaction is rejected. The TAN has now been used and will not be recognized for any further transactions. If the TAN list is compromised, the user may cancel it by notifying the bank.

  5. Inverse hyperbolic functions - Wikipedia

    en.wikipedia.org/wiki/Inverse_hyperbolic_functions

    Graphs of the inverse hyperbolic functions The hyperbolic functions sinh, cosh, and tanh with respect to a unit hyperbola are analogous to circular functions sin, cos, tan with respect to a unit circle. The argument to the hyperbolic functions is a hyperbolic angle measure.

  6. Trigonometric functions - Wikipedia

    en.wikipedia.org/wiki/Trigonometric_functions

    The y-axis ordinates of A, B and D are sin θ, tan θ and csc θ, respectively, while the x-axis abscissas of A, C and E are cos θ, cot θ and sec θ, respectively. Signs of trigonometric functions in each quadrant. Mnemonics like "all students take calculus" indicates when sine, cosine, and tangent are positive from quadrants I to IV. [8]

  7. Dad Has Been Surprising Daughter, Now 18, with a New ... - AOL

    www.aol.com/dad-surprising-daughter-now-18...

    After going viral, Mark says he took some time to read through the comments. Many of them broke his heart. "Some of them they're like, 'My dad would never,' and 'My dad doesn't even call me on ...

  8. The AOL.com video experience serves up the best video content from AOL and around the web, curating informative and entertaining snackable videos.

  9. List of trigonometric identities - Wikipedia

    en.wikipedia.org/wiki/List_of_trigonometric...

    All of the right-angled triangles are similar, i.e. the ratios between their corresponding sides are the same. For sin, cos and tan the unit-length radius forms the hypotenuse of the triangle that defines them. The reciprocal identities arise as ratios of sides in the triangles where this unit line is no longer the hypotenuse.