多项选择题

A.#1=#6-#3*COS[#4]/#2
B.#1=#6*[#2+#3*COS[#4+#5]]
C.#1=#6/#2-#3*COS[#4]
D.#1=#2+#3*COS[#4*#5]]
E.#1=COS[#4]*#6/#2-#3