百度试题 结果1 题目2)Find sin 2x, cos 2x, tan 2x if secx=(-13)/5π/(2)xπ 相关知识点: 试题来源: 解析 2. -120-119 120 169,1691 119 1 反馈 收藏
{eq}\cos 2x=1-2\sin^2 x {/eq} Sine Double-Angle Identity: {eq}\sin 2x=2\sin x\cos x {/eq} Tangent Double-Angle Identity: {eq}\tan 2x=\dfrac{2 \tan x}{1-\tan^2 x} {/eq} Pythagorean Identities: {eq}\sin^2x+\cos^2x=1 {/eq} ...
Find {eq}\displaystyle \sin 2x, \cos 2x \text{ and }\tan 2x {/eq} from the given information a).{eq}\displaystyle \sec x = 2, x {/eq} is in quadrant {eq}\displaystyle IV. {/eq} b).{eq}\displaystyle \tan x = ...
\sin x = \tan x Find sin 2x, cos 2x , and tan 2x if tan x = dfrac{3}{4} and x terminates in quadrant III . If tan 2 = 4/3 for 0 , /2, find the exact value of sin without using a calculator. Find sin 2x, cos 2x , and tan 2x if cos x = - dfrac{3...
∫sin2x+sin5x−sin3xcosx+1−2sin22xdx View Solution Integrate:∫sinxcos2xsin3xdx View Solution Integrate:sinxsin(cosx) View Solution Integrate:sinxsin(cosx) Integrate:sinxsin(cosx) View Solution Doubtnut is No.1 Study App and Learning App with Instant Video Solutions for NCERT Class 6,...
View Solution Find the maximum and minimum values ofx+ sin2xon[0,2π]. View Solution Exams IIT JEE NEET UP Board Bihar Board CBSE Free Textbook Solutions KC Sinha Solutions for Maths Cengage Solutions for Maths DC Pandey Solutions for Physics ...
Answer to: Find the slope of the tangent to y = sin2x + cos2x at the point where x = pi. a) 0.112 b) 0 c) 1 d) -3.124 By signing up, you'll get...
If cos x=13, find sin(2x) given sin x<0.Solution:Write the double-angle identity for the sine function. sin(2x)=2sin xcos xSolve for sin x using the Pythagorean identity. sin^2x+(13 )^2=1sin x=(2√2)3Substitute cos x=13...
How to find thenthnthderivative ofsin3xcos2xsin3xcos2x? Let me explain how I tried. Actually this question is fromHigher Engineering Mathematicsby B.S. Grewal. I wrotesin3xcos2x=sin3x(1−sin2x)sin3xcos2x=sin3x(1−sin2x) ...
derivative in any form, e.g.-sin x sin 2x+2cos x cos 2x Use double angle formula to express derivative in terms of sin x and cos x Equate derivative to zero and obtain an equation in one trig function Obtain 3 sin 2x=1, or 3 cos 2x=2 or 2 tan 2x=1Solve and obtainx=0.615...