How do you differentiate #f(x) =cosx*sec^2(x) #?
2 Answers
Mar 7, 2016
Explanation:
Mar 7, 2016
Explanation:
Rewrite first
# = cosx 1/(cosx)^2#
# = 1/cosx#
# = secx# .
So,
Use product rule first
# = -sinxsec^2x+2sec^2x [tanx cosx]#
# = -sinxsec^2x+2sec^2x [sinx]#
# = sec^2xsinx#
# = secx tanx#