Verify Rolle's Theorem for the function  from Mathematics Cont

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 Multiple Choice QuestionsShort Answer Type

591. Verify Roll's Theorem for the function :f(x) = x (x - 3)2 in 0 ≤ x ≤ 3
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592. Verify Roll's Theorem for the function :f(x) = (x2 - 1) (x - 2) in [-1, 2]
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593. Verify Roll�s Theorem for the function :f{x) = e1 - x2 in [-1, 1]
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594. Verify Roll�s Theorem for the function :f(x) = log (x2 + 2) - log 3 in [-1, 1]
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595. Verify the truth of Rolle's Theorem for the function
straight f left parenthesis straight x right parenthesis equals space sin space 3 straight x comma space straight x element of open square brackets 0 comma space straight pi over 3 close square brackets
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596. Verify Rolle's Theorem for the function f(x) = sin2 x in [0, straight pi].
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597. Verify Rolle's Theorem for the function straight f left parenthesis straight x right parenthesis space equals space cos squared space straight x space in space left square bracket 0 comma space straight pi right square bracket


Here space straight f left parenthesis straight x right parenthesis space equals space cos 2 space straight x space
left parenthesis straight i right parenthesis space We space know space that space cos space straight x space is space continuous space in space left square bracket 0 comma space straight pi right square bracket space
Now space cos 2 straight x comma space being space th space product space of space two space continuous space functions space cos space straight x space and space cos space straight x comma space is space continuous space in space left square bracket 0 comma space straight pi right square bracket space
left parenthesis ii right parenthesis space straight f apostrophe left parenthesis straight x right parenthesis space equals space minus 2 space cos space straight x space sin space straight x comma space Which space exists space in space left parenthesis 0 comma space straight pi right parenthesis space
therefore space straight f left parenthesis straight x right parenthesis space is space derivable space in space left parenthesis 0 comma space straight pi right parenthesis space
left parenthesis iii right parenthesis space straight f left parenthesis 0 right parenthesis space equals space cos 2 space 0 space equals space 1 comma space straight f left parenthesis straight pi right parenthesis space equals space cos 2 space straight pi space equals space left parenthesis negative 1 right parenthesis 2 space equals space 1 space
therefore space straight f left parenthesis straight x right parenthesis space satisfies space all space the space conditions space of space Rolle apostrophe straight s space theorem space
therefore space there space must space exist space at space least space one space value space straight c space of space straight x space such space that space
straight f apostrophe left parenthesis straight c right parenthesis space equals space 0 space where space 0 space less than space straight c space less than space straight pi.
Now space space space space straight f apostrophe left parenthesis straight c right parenthesis equals 0 space gives space us space minus 2 space cos space straight c space sin space straight c equals 0
therefore space space space space cos space straight c equals 0 space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space left square bracket because space sin space straight c not equal to 0 space in space left parenthesis 0 comma space straight pi right parenthesis right square bracket
therefore space space space space straight c equals straight pi over 2 element of space left parenthesis 0 comma space straight pi right parenthesis
therefore space Rolle apostrophe straight s space theorem space is space verified.

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598. Verify Roll's Theorem for the function :straight f left parenthesis straight x right parenthesis equals space sin space straight x minus 1 space in space open square brackets straight pi over 2 comma space fraction numerator 5 straight pi over denominator 2 end fraction close square brackets
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599. Verify Roll's Theorem for the function : straight f left parenthesis straight x right parenthesis equals space sin space 2 space straight x space or space cos space 2 open parentheses straight x minus straight pi over 4 close parentheses space in space open square brackets 0 comma space straight pi over 2 close square brackets
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600. Verify Roll's Theorem for the function : straight f left parenthesis straight x right parenthesis equals cos space straight x plus sin space straight x space in space left square bracket 0 comma space 2 straight pi right square bracket
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