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Find the value of K for …

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Find the value of K for which f(x)={1-cos4x , when x=0 and K, when x=0} is continous at x=0 ?

    • Posted by Rakshit Singh 6 years, 4 months ago

    CBSE > Class 12 > Mathematics
    • 1 answers

    Aanchal Kishor 6 years, 4 months ago

    F(x) = 1-cos4x F(0)=1 - cos0 = 1-1=0 F(k) = 1-cos 4k F'(k) =4sin4k F'(k) = 0 4sin4k=0 Sin4k = 0 Sin4k=sin0 On comparing. 4k=0 K = 0

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