(2 sin A - 4 cos^2 A + 3) =0Dividing both sides by cos A = cos 18°=0,we get=2 sin - 4 (1 - sin^2 A)+ 3=0= 4 sin^2 A + 2 sin A - 1 = 0, which is a quadratic in sin ATherefore, sin = 2± 2(4)= sin = 8 sin == sin = Now sin 18° is positive, ...
【题】 Find the exact value of .Write your answer in radians in terms of sin^-(-(√2)/2) -1sin用π写出答案 相关知识点: 试题来源: 解析 【解析】 sin^-(-(√2)/2)=arcsin(-(√2)/2)=-45^0=-π/(4) (估计原题来自类似于美国GRE之类的往届考试题 你做该类练习题时,用英文以及数学...
The exact value ofsin(30)sin(30)is1212. 12cos(45)+cos(30)sin(45)12cos(45)+cos(30)sin(45) The exact value ofcos(45)cos(45)is√2222. 12⋅√22+cos(30)sin(45)12⋅22+cos(30)sin(45) The exact value ofcos(30)cos(30)is√3232. ...
If possible, find the exact value of each expression. a. {eq}\arcsin 1 {/eq}. b. {eq}\sin^{-1} (-2) {/eq}. Arcsine - Definition The "inverse sine function" is also referred to as "arcsine function" whereas it uses the trigonometric sine ratio as an input t...
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 3809 0 00:05 App 【Vivid】Judy Jogs 3792 2 00:28 App 【曹政奭】【cgs-records】250225油管更新|掉马reaction:当身份不明的AI油管博主身份...
结果1 题目Find the exact value of the expression, if it is defined.(1)n()tan(tan-1个3景(4sin-1sin一(5tan-12元tan8(6tan f(x_1=0,(√3)/2) sin-1(1CoS sin-128tan 12sin 相关知识点: 试题来源: 解析 (1) 4 (2)5 (3) π/(3) 3 (4) 6 (5) 3 (6) (7) 1/2 (8)...
元4 Find the exact value of x sinxdx. 相关知识点: 试题来源: 解析 Commenc integration and reach 2axcos{{1}\over{2}} x+b\int\cos{{1}\over{2}} xdxObtain -2xcos{{1}\over{2}} x+2\int cos{{1}\over{2}} xdxComplete intergration obtaining -2xcos{{1}\over{2}} x+4sin{{1}...
Find exact value of tan(π12)tan(π12) given that sin(π12)=3√−122√sin(π12)=3−122 Hot Network Questions Why should the normal force equal the weight of an object when the surface on which it stands is flat? Is using online interaction platforms like Wooclap effecti...
Answer to: Find the exact value of sin(3pi/4). By signing up, you'll get thousands of step-by-step solutions to your homework questions. You can...
Exact Value Using the sum formula for sine, find the exact value of sin 23 degrees cos 7 degrees + sin 7 degrees cos 23 degrees. Help Please?? Follow•2 Add comment Report 1Expert Answer BestNewestOldest By: Michael J.answered • 11/28/16...