若实数x,y满足x²+y²-12x+4y+40=0,求xsin(-25兀/3)+ysin(-15兀/
来源:学生作业帮 编辑:搜搜做题作业网作业帮 分类:数学作业 时间:2024/07/22 22:39:10
若实数x,y满足x²+y²-12x+4y+40=0,求xsin(-25兀/3)+ysin(-15兀/4)的值.
![若实数x,y满足x²+y²-12x+4y+40=0,求xsin(-25兀/3)+ysin(-15兀/](/uploads/image/z/19224018-18-8.jpg?t=%E8%8B%A5%E5%AE%9E%E6%95%B0x%2Cy%E6%BB%A1%E8%B6%B3x%26%23178%3B%2By%26%23178%3B-12x%2B4y%2B40%3D0%2C%E6%B1%82xsin%EF%BC%88-25%E5%85%80%2F3%EF%BC%89%2Bysin%EF%BC%88-15%E5%85%80%2F)
x=6,y=-2,原式=6sin(-pai/3)-2sin(pai/4)=-3跟号3-跟号2
当x,y为实数,满足x²+3y²-12y+12=0求y^x
若x,y为实数且满足 x^+3y^-12y+12=0 ,求y^x的值?
实数x,y满足x²+y²+8x+6y+25=0,求x²+4xy+4y²分之x
已知实数x y满足x²+25+根号y+4=10x求x+y的立方根
若x,y为实数满足x²+3y²-12y+12=0,求y的x次方的值
若x,y为实数,满足x²+3y²-12y+12=0,求y的x次的值
若实数x,y满足x的平方+2√3x+根号(x+y+1)+3=0,求代数式(1/x-y+1/x+y)÷y/(x²
实数x,y满足方程x²+y²-4x+1=0,求(x+3)²+(y+3)²的最大值
已知实数x,y满足x²+y²-xy+2x-y+1=0 求x y
已知实数x, y满足x²+y²-2x+6y+10=0,求y∧-x.
若实数x、y满足x平方+y平方-4x-2y+5=0,求根号8y-2x分之(根号x)+y
已知实数x,y满足根号(x+3y-1)+y²+2y+1=0,求2x-y的平方根