यदि sin theta+ 2 cos theta=1 है, तो सिद्ध कीजिए कि 2sin θ - cos θ =2
Step by step video, text & image solution for cos 2theta cos 2phi + sin^(2) (theta - phi ) - sin^(2) ( theta + phi) is equal to by Maths experts to help you in doubts & scoring excellent marks in Class 11 exams. Updated on:21/07/2023 ...
百度试题 结果1 题目证明\( \sin^2 \theta + \cos^2 \theta = 1 \)。相关知识点: 试题来源: 解析 证明:根据三角恒等式,我们知道 \( \sin^2 \theta + \cos^2 \theta \) 是三角函数的基本恒等式,它恒等于1。反馈 收藏
Answer to: Use the figure to find the exact value of the following trigonometric function: sin(theta/2). By signing up, you'll get thousands of...
将tan(θ)tan(θ)重写为正弦和余弦形式。 (sin(θ)cos(θ))2(sin(θ)cos(θ))2 对sin(θ)cos(θ)sin(θ)cos(θ)运用乘积法则。 sin2(θ)cos2(θ)sin2(θ)cos2(θ) 将sin2(θ)cos2(θ)sin2(θ)cos2(θ)转换成tan2(θ)tan2(θ)。 tan2(θ)tan2(θ)...
,∴ (sin θ )(cos θ )=tan θ =2,∴ tan 2θ =(2tan θ )(1-tan ^2θ )=(2* 2)(1-2^2)=-43.故答案为:-43. 相关推荐 1已知,则的值为___. 22.(★★☆)已知 sinθ=2cosθ ,则(sin(m/2+n)⋅nc(cosn))/(n(π/(2)-n)⋅n(π-n)) A.2B.-2C.02/3 3已知,则...
Answer to: Verify the following identity: (cos\theta - sin \theta)^2 = 1 - sin(2 \theta). By signing up, you'll get thousands of step-by-step...
Answer to: Consider the polar curve r = 2cos(\theta) sin^2(\theta), \; 0 \leq \theta \leq 2\pi. Give the polar coordinates of any vertical tangent...
已知\( \sin \theta = \frac{1}{2} \),且\( \theta \)在第二象限,求\( \cos \theta \)和\( \tan \theta \)的值。,本题来源于数学必修五试题及答案
若\( \cos \theta = \frac{1}{2} \),且\( \theta \)为第二象限角,则\( \sin \theta \)的值为:,本题来源于数学必修四复习题二答案