问题描述:
问2道三角函数的题目
1.已知α、β为锐角,且3(sin(α))^2+2(sin(β))^2=1,3sin(2α)-2sin(2β)=0,求证α+2β=π/2
2.8sin(α)+10cos(β)=5,8cos(α)+10sin(β)=5√3,求证sin(α+β)=-sin((π/3)+α)
在下请教各位高手了,谢谢.
1.已知α、β为锐角,且3(sin(α))^2+2(sin(β))^2=1,3sin(2α)-2sin(2β)=0,求证α+2β=π/2
2.8sin(α)+10cos(β)=5,8cos(α)+10sin(β)=5√3,求证sin(α+β)=-sin((π/3)+α)
在下请教各位高手了,谢谢.
问题解答:
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