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Using first principle of differentiation, find the deviation of the below function?

Y= sin x

Y = cos x

Y=x⁴+3x-2

3 Answers

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  • rotchm
    Lv 7
    2 months ago

    Hint: Did you ever hear of Google? If you adequately type your question into Google, you will immediately get many answers, especially for the first two you asked. It will be much quicker for you that way! 

  • Pope
    Lv 7
    2 months ago

    Y = sin(x)

    As h → 0,

    dY/dx

    = lim [sin(x + h) - sin(x)]/h

    = lim [sin(x)cos(h) + cos(x)sin(h) - sin(x)]/h

    = lim [sin(x) - sin(x)]/h + lim cos(x)sin(h)/h

    = 0 + cos(x)

    = cos(x)

    That was your one question allowance.

  • Anonymous
    2 months ago

    Too long to type out.  Easy to find 1st two with a search.

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