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Great Revision Question:Can someone solve this question please ?

  • 20-09-2014 10:30PM
    #1
    Irishlion97
    Registered Users, Registered Users 2 Posts: 12 ✭


    If f(x) = 6sin(x2)+3, where x is measured in radians, then what is the slope of f(x) at x = 3?
    Tagged:


Comments

  • #2
    Username6212
    Registered Users, Registered Users 2 Posts: 21 ✭Username6212


    Find the derivative of f(x) ( which is the slope) then substitute 3 in for x (this will give you the value when x=3


  • #3
    Raspberry Fileds
    Closed Accounts Posts: 294 ✭✭Raspberry Fileds


    I presume the angle is x-squared (ie x^2). Use Chain Rule to differentiate. First derivative is (2x)(6)cos(x^2). As said, substitute for x.


  • #4
    Irishlion97
    Registered Users, Registered Users 2 Posts: 12 ✭Irishlion97


    correct


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