数学三角函数填空题1.x05tanA=0.25,则cos2A+（sinA）平方=___________2.x05tan(A+B+π/6)=0.5,tan(B-π/6)=-1/3,则tan(A+π/3)=__________3.x05(1+cosA)/sinA=2,则sinA-cosA=____________4.x05cosA=4/5,tan(A-B)=-1/3,则cosB=__________5.x05sinA

数学三角函数填空题

1.x05tanA=0.25,则cos2A+（sinA）平方=___________

2.x05tan(A+B+π/6)=0.5,tan(B-π/6)=-1/3,则tan(A+π/3)=__________

3.x05(1+cosA)/sinA=2,则sinA-cosA=____________

4.x05cosA=4/5,tan(A-B)=-1/3,则cosB=__________

5.x05sinA-sinB=-1/2,cosA-cosB=1/2,则tan(A-B)=_________

6.x05已知角A的终边在y=-2x(x≥0),求sin(2A+5π/4)=___________

有没有6题的全部答案？1到5题的过程可省略……求6题全部答案！求完整的正确答案！