Note that:x.(3+cosx)>2sinx , x>0 I should solve this problem with mean value theorem and I am not sure how to because of x>0 but not x>=0.
okay, after applying this I could show that sinx<x for x>0 and its done, thanksNote that:
3 + cos(x) >= 2
Please show us what you have tried and exactly where you are stuck.Please follow the rules of posting in this forum, as enunciated at:Please share your work/thoughts about this assignment.