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Mathematics 7 Online
OpenStudy (anonymous):

Find value of lim x ->0 cos^2x-cos^2(2x)/x^2? Find value of lim x ->0 cos^2x-cos^2(2x)/x^2? @Mathematics

OpenStudy (anonymous):

ans 3

OpenStudy (anonymous):

Could you explain a bit how you got that answer?

OpenStudy (anonymous):

apply l-hospital rule

OpenStudy (anonymous):

independently differentiate numerator as well as denominator 2 times u will get the ans

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