关于COS TAN SIN1.If tan口萨=5/12,then find exact values of cos口萨,sin口萨,and then find the angle口萨 to the nearest degree.2.If cos口萨=-4/5 and 90°

来源：学生作业学帮网 编辑：学帮网 时间：2024/07/02 11:51:10

关于COS TAN SIN
1.If tan口萨=5/12,then find exact values of cos口萨,sin口萨,and then find the angle口萨 to the nearest degree.
2.If cos口萨=-4/5 and 90°

1.若tanψ=5/12,求cosψ,sinψ的精确值,然后求出ψ的度数.
2.设cosψ=-4/5,且90

一头雾水

you can use 1+tan^x=1/cos^x to figure out cosx and then you can also use cos^x+sin^x=1 to figure out sinx. i don't know what's your meaning about the question that is to find the angle x to the nearest degree. The next question you ask can be solved like above all.
Anyway, I don't know what on earth you purpos is.

可以用搜狗来表示特书的数学符号，在提一次吧（修改后的），给你正确答案。

关于COS TAN SIN1.If tan口萨=5/12,then find exact values of cos口萨,sin口萨,and then find the angle口萨 to the nearest degree.2.If cos口萨=-4/5 and 90° 求证：sin1/(cos0*cos1)+sin1/(cos1*cos2)+sin1/(cos2*cos3)+...+sin1/(cosn*cos(n+1))=tan n cos/tan/sin1,2,3,4分别位于哪个象限?怎么判断的? 求证sin1°/【cosn°*cos(n+1)°】=tan（n+1）°-tann° 模具钳工关于SIN COS TAN 计算方法 关于sin,cos,tan,cot,csc,sec之间的关系 关于tan sin cos的关系式、尽量多. sin1 求证:Sin^2 x / (sinx-cosx) - (sin x + cos x)/(ta求证:Sin^2 x / (sinx-cosx) - (sin x + cos x)/(tan^2-1) = sin x + cos x 1.已知a在第一象限,且cosa=5/13,求sin(a+π/4) / cos(2a+4π）的值2.已知sina,cosa是关于x的二次方程：2x²+（根号2+1）x+m=0的两根.求cosa/1-cot²a + sina/1-tan²a的值3.判断sin1 ,sin2 ,sin3 ,sin4的大小4.求Y= Sin cos tan cosα*tanα tan sin cos 三角函数sin cos tan. sin cos tan sin,cos,tan, 钝角有COS,TAN, cos阿尔法*tan阿尔法