Nothing Special   »   [go: up one dir, main page]
Scribd Logo
Upload

Welcome to Scribd!

  • 39 views

    Gateway Tips-SP-16 PDF

    Uploaded by

    marioasensicollantes
    This document provides tips for taking the Math 107 Online Gateway test. It discusses: 1) Always using the preview link to double-check answers, as mathematical expressions can be interpreted differently without parentheses. 2) Acceptable ways to enter common mathematical functions, operators, and constants in the online test. 3) Common errors to avoid, such as missing parentheses when multiplying or taking powers of functions. 4) Remembering that the variable of integration is not always x, and to not include +C when giving indefinite integrals. 5) For definite integrals, decimal answers are not required - expressions can be used instead.

    Copyright:

    © All Rights Reserved
    Download as PDF, TXT or read online from Scribd

    Gateway Tips-SP-16 PDF

    Uploaded by

    marioasensicollantes
    39 views1 page
    This document provides tips for taking the Math 107 Online Gateway test. It discusses: 1) Always using the preview link to double-check answers, as mathematical expressions can be interpreted differently without parentheses. 2) Acceptable ways to enter common mathematical functions, operators, and constants in the online test. 3) Common errors to avoid, such as missing parentheses when multiplying or taking powers of functions. 4) Remembering that the variable of integration is not always x, and to not include +C when giving indefinite integrals. 5) For definite integrals, decimal answers are not required - expressions can be used instead.

    Original Description:

    Original Title

    Gateway Tips-SP-16.pdf

    Copyright

    © © All Rights Reserved

    Available Formats

    PDF, TXT or read online from Scribd

    Did you find this document useful?

    Is this content inappropriate?

    This document provides tips for taking the Math 107 Online Gateway test. It discusses: 1) Always using the preview link to double-check answers, as mathematical expressions can be interpreted differently without parentheses. 2) Acceptable ways to enter common mathematical functions, operators, and constants in the online test. 3) Common errors to avoid, such as missing parentheses when multiplying or taking powers of functions. 4) Remembering that the variable of integration is not always x, and to not include +C when giving indefinite integrals. 5) For definite integrals, decimal answers are not required - expressions can be used instead.

    Copyright:

    © All Rights Reserved
    Download as PDF, TXT or read online from Scribd
    Download as pdf or txt
    39 views1 page

    Gateway Tips-SP-16 PDF

    Uploaded by

    marioasensicollantes
    This document provides tips for taking the Math 107 Online Gateway test. It discusses: 1) Always using the preview link to double-check answers, as mathematical expressions can be interpreted differently without parentheses. 2) Acceptable ways to enter common mathematical functions, operators, and constants in the online test. 3) Common errors to avoid, such as missing parentheses when multiplying or taking powers of functions. 4) Remembering that the variable of integration is not always x, and to not include +C when giving indefinite integrals. 5) For definite integrals, decimal answers are not required - expressions can be used instead.

    Copyright:

    © All Rights Reserved
    Download as PDF, TXT or read online from Scribd
    Download as pdf or txt
    of 1

    Math 107 Online Gateway Tips

    ALWAYS use the PREVIEW link to double-check what your answers really look like.

    You can use ∗ for multiplication (optional, but helps); ^ for powers; ln, sin, cos, tan, arctan, arcsin for the
    corresponding functions; pi for π ≈ 3.14159265..., and e for e ≈ 2.71828 . . ..
    For ex you may enter either e^ x or exp(x)

    Inverse trig functions can also be entered as, for example, sin^ (-1)(x) for arcsin(x).
    √
    x could be entered as either sqrt(x) or x^ (1/2)

    For practice go to: https://math-webwork.unl.edu/webwork2/107-Spring-2016


    and click either Take 107 Practice Gateway test
    or, you may focus on a specific integration topic by choosing one of 107 Gateway T1 T2...T7 links.

    If you started a test earlier, you can return to the old session by following the respective link at the bottom of the list.

    Common Gateway Errors


    1
    I. Parentheses in products, quotients, and exponents. Remember that 1+x2 is supposed to be

    1/ ( 1+x^ 2 )

    1
    Without the parentheses, that would be interpreted as 1 + x2 .

    1 1
    Likewise, “1/2x” means 2 · x. If you need 2x , then type

    1/(2x) or 1/(2*x) or (2*x)^ (-1), etc.


    2
    e^ x^ 2 would be read as (ex )2 ; if you need ex instead, the input must be

    e^(x^ 2)

    II. Parentheses around the argument of a function.

    If you type in “ sin 2*x” that would be interpreted as (sin 2) · x. If you would like sin(2x), then use

    sin(2x)

    Similarly, “e^ 2 x” without any parentheses results in (e2 )x, or, for example, just “sin 3+x” means (sin 3) + x.

    III. Powers of trig functions. If you enter “tan^ 2(x)” that would be interpreted as (tan(x))2 . The same result if you
    type in “(tan(x))^ 2”.
    1
    However, if you input tan^ (-1)(x), then it will become arctan(x). If you actually need tan(x) then use 1/tan(x) or
    (tan(x))^ (-1)
    IV. Indefinite integrals. Do not (for once) add “+C” in your answers. Also, pay attention to what the variable of integration
    is. It is not always “x”, could be any of y, t, z, v, w, etc.
    V. Definite integrals. You won’t be permitted to use a calculator, but remember that you do not have to enter answers in
    decimal notation. For example, “sin(1)+sqrt(1357)-pi+e^ 2” is acceptable.

    You might also like