问题描述:
(1)已知cos[(π/3)-a]=根号3/3,求sin[5π/6)-a]+sin^2[(2π/3)+a]的值
(2)求值:log8(3)*log9(2)+log1/2(三次根号下16)-(-3又3/8)^(-2/3)+(1.5)^-2
(2)求值:log8(3)*log9(2)+log1/2(三次根号下16)-(-3又3/8)^(-2/3)+(1.5)^-2
问题解答:
我来补答展开全文阅读