Farhana Banu's answer to Anonymous's Secondary 4 A Maths Singapore question.
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Hope this helps! You may round off the value of 'c' to 3sf if you want to.
Date Posted:
2 years ago
hi thanks, but at sec 4 level we're not taught how to differentiate expressions like the one in the qn involving sec^2, is there an alternative way to do it?
cosecx can be written as (1/sinx).
u can rewrite it as (sinx)^-1
and differentiate it using chain rule
u can rewrite it as (sinx)^-1
and differentiate it using chain rule
yepp got it thanks :)
ur welcome ^^
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