Recent content by golf747

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    CALCULUS, EXTREME VALUES of function on interval and where they occur

    Am i correct?? did i perform the steps right? Thanks
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    CALCULUS, EXTREME VALUES of function on interval and where they occur

    ok. i think i got #2 down. 2. y'= 4(x^2+1) - 4x(x) ________________ (x^2+1)^2 = 4x^2+4-8x^2 _______________ (x^2+1)^2 0 is only critical pt? f(0) = 0 sine chart for 0 -2 = neg and 2 = neg so... no extreme values??
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    CALCULUS, EXTREME VALUES of function on interval and where they occur

    yes, i mean the cos one not f'(0) when you are looking for critical points you plug in 0 of f(0) into the original/position equation right? i think i did that right just forgot about the pos/neg stuff
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    CALCULUS, EXTREME VALUES of function on interval and where they occur

    For f(0) the negitive of sin is later added onto -1/sqrt(2) right? making it positive? ok i see what i did. y= 4x(x^2+1)^-1 y'=-4x(x^2+1)^-2 oh ... shoot i was supposed to use quotient rule right? thanks a lot i kind of get calculus a little bit more
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    CALCULUS, EXTREME VALUES of function on interval and where they occur

    CALCULUS, EXTREME VALUES of function on interval and where they occur! find the extreme value of function on the interval and where they occur. Please Help, teacher did during class but didnt get explanation. 1. y=cos(x-(pi/4)) , at the interval of [0,7pi/4] My attempt: y'= -sin...