Exact values of sin(45), cos(45), tan(45), csc(45), sec(45), cot(45)| SIN45COS45安常投资 立即播放 打开App,流畅又高清100+个相关视频 更多 4255 0 03:51 App YouTube、Vimeo、Instagram视频下载工具videosdown 更新v3.5啦,解决了IP不干净也能下载的问题! 415 0 00:34 App 【动态设计】...
Do not use a calculator.相关知识点: 试题来源: 解析 sin 2x= (24)(25), cos 2x=- 7(25), tan 2x=- (24)7 本题考查动名词作宾语。consider 后面需要接动名词作宾语,表示“考虑做某事”。因此,正确答案为 C 选项 sending,表示“考虑让他们的孩子出国留学”。反馈 收藏 ...
In the problem, sin theta and cos theta are given. Find the exact value of the indicated trigonometric function. sin theta = sqrt(7)/4, cos theta = 3/4. Find tan theta. Find the exact values for sin theta, cos theta, and tan theta. ...
Find the exact values of the sine, cosine, and tangent of the angle. {eq}15^o{/eq} {eq}\sin(15^0 ) =\rule{3cm}{0.15mm} \\\cos(15^o ) = \rule{3cm}{0.15mm} \\\tan(15^o ) =\rule{3cm}{0.15mm}{/eq} Sum/Difference Identity: Some ...
Tan 90° = Sin 900/ Cos90° From thetrigonometric table, we know, Sin 90° = 1 And, Cos 90° = 0 ∴ Tan 90°= 1/0 = Undefined That means, we cannot define Tan 900value. For a unit circle,which has a radius equal to 1, we can derive the tangent values of all the degrees...
If sin theta gt 0 and tan theta = -1/2, find the exact value of cos theta. Given that theta is an angle between pi and 3 pi / 2 , such that cot theta = 3/5 . Find exact values for: a. sin theta b. tan(2 theta) c. sin( pi/2 - theta) ...
百度试题 结果1 题目Find the exact value of the expression.sin(cos^(-1)(2/3)-tan^(-1)(1/2)) Need Help?Read It Master It 相关知识点: 试题来源: 解析 m58980= 2—0 反馈 收藏
So tangent will be negative and cosine positive. Use the double angle formula for sine and cosine. tan(2θ) = 2sin(θ)cos(θ)/(cos2(θ) - sin2(θ)) We know sin(θ) = -2√13/13 = opposite/hypotenuse = y/h We need cos(θ) = adjacent/hypotenuse = x/h x = √(...
Use the figure to find the exact values of sin 2u, cos 2u, and tan 2u. Find the exact value by using a half-angle identity. sin 22.5. Find the exact value of the given trigonometric function sec 9π/4. Find the exact value of the given trigonometric function. ...
We can find the values of trigonometric ratios for several other angles using these values. The formulae used in this problem are: {eq}\begin{align*} \tan(90^\circ+\theta)&=-\cot\theta\\[0.3 cm] \cot(90^{\circ}+\theta)&=-\tan\theta \end{align*} ...