Given that the equation of trigonometry ππππππππππI=3cos(3π4)sin(π4)+2cos(π4)+sin(3π4)cos(π4)3cos(3π4)cos(π4)−2sin(π4)−sin(3π4)sin(π4)
=cos(2π) =0 =0 Popular Examples Frequently Asked Questions (FAQ) What is the value of cos((3pi)/2)cos(pi)-sin((3pi)/2)sin(pi) ? The value of cos((3pi)/2)cos(pi)-sin((3pi)/2)sin(pi) is 0
1=a1=a2औरan=an−1+an−2,n>2. an+1anनिकालें जबकिn=1,2,3,4,5. View Solution Letθ,φε[0,2π]be such that2cosθ(1−sinφ)=sin2θ(tanθ2+cotθ2)cosφ−1,tan(2π−θ)>0and−1>sinθ<√32 Ifsinθ+sinφ=aandcosθφ+cosφ...
Show that (cos(pi/20)+sin(pi/20))/(cos(pi/20)-sin(pi/20))=cot(pi/5) View Solution Doubtnut is No.1 Study App and Learning App with Instant Video Solutions for NCERT Class 6, Class 7, Class 8, Class 9, Class 10, Class 11 and Class 12, IIT JEE prep, NEET preparation and ...
sin-pi/5=?cos-pi/5=?总共15个问题.问题可能比较多,但有30分奖励,加油吧大侠们.注意:这里的pi是指圆周率3.14.,2pi就是2乘pi的意思,pi/2就是pi除以2的意思,“-”表示负号的意思,例如-pi/3表示负的pi除以3.我记得初中有份表的,但不记得了,请高手门帮帮手.答案形式就是例如:cospi= -1,sinpi= 0...
确定下列三角函数值的符号:(1)\(\sin 156^{ \circ }\);(2)\(\cos \dfrac{16}{5} \pi\);(3)\(\cos \left(
Answer to: Find the derivative (chain rule): s=\sin(\frac{3\pi t}{2})+\cos(\frac{3\pi t}{2}) By signing up, you'll get thousands of step-by-step...
\int_{\frac{\pi}{4}}^{\frac{\pi}{3}}d\theta\int^{\frac{1}{\sqrt{\sin 2\theta}}}_{\frac{1}{\sqrt{2\sin 2\theta}}}f(r\cos\theta,r\sin\theta)rdr D、 \int_{\frac{\pi}{4}}^{\frac{\pi}{3}}d\theta\int^{\frac{1}{\sqrt{\sin 2\theta}}}_{\frac{1}{\sqrt{...
cos(π16)cos(3π16)−sin(π16)sin(3π16)cos(π16)cos(3π16)-sin(π16)sin(3π16) 小数形式: 0.70710678…0.70710678… cos(π16)cos(3π16)−sin(π16)sin(3π16)cos(π16)cos(3π16)-sin(π16)sin(3π16) ...
(4) -sin\frac{\pi}{6} (5) -cot\frac{\pi}{6} (6)-cos(\frac{3\pi}{2}-4) (1)cos\frac{\pi}{3}=sin(\frac{\pi}{2}-\frac{\pi}{3})=sin\frac{\pi}{6} (2)sin\frac{3\pi}{5}=cos(\frac{3\pi}{5}-\frac{\pi}{2})=cos\frac{\pi}{10} (3)cos\frac...