Question
lim x tends to 0 x tan( cos-1x)
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put cos-1x =t u wil get cost =x therfore tan(cos-1x )= tant = (1-x2)1/2/x
theforfe the question is lim x tends to 0 (1-x2)1/2=1 ans.
Best SolutionNIKHIL VARSHNEY 12 year ago
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