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Find the no. of points of discontinuity of f(x) = (1+cos5x) / (1-cos4x)

Tushar Watts , 16 Years ago
Grade 12
anser 2 Answers
bibhash jha

since cos function is continuous throughout the R ,

we need to check the denominator which must not be zero .

 

1-cos4x=0 => x=npi/2  , n=integer

 

so domain = R- { npi/2 | n is an integer }

Last Activity: 16 Years ago
Askiitian.Expert Rajat

Hi

 

the function would be discontinuous at the points that it is not defined

Those points are :

x=npi/2

Last Activity: 16 Years ago
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