Tìm Min,Max:
a)$Sin^{2014}x+Cos^{2015}x$
b)$Sin^{2015}x+Cos^{2013}x$
c)$Sin^{2012}x+Cos^{2016}$
d)$y=141-12sin(4x+\dfrac{5\pi}{2})-24sin2x+4sin^2x-4sinx-\dfrac{1}{2}cos24x$ với $0 \leq x \leq \pi$
Moi nguoi trinh bay ki giup minh voi nhe vi 3 cau dau,minh lam co ve khong tu nhien va hoi ngo nhan