![Prove that: sin(pi+x)cos (pi2+x)tan (3pi2-x)cot(2pi-x)sin(2pi-x)cos(2pi-x) ( - x)sin (3pi2-x) = n pi + pi 4 where n∈ N Prove that: sin(pi+x)cos (pi2+x)tan (3pi2-x)cot(2pi-x)sin(2pi-x)cos(2pi-x) ( - x)sin (3pi2-x) = n pi + pi 4 where n∈ N](https://haygot.s3.amazonaws.com/questions/1493551_1665197_ans_f6a00f3a652f4aad8e28e1b0fda724df.jpg)
Prove that: sin(pi+x)cos (pi2+x)tan (3pi2-x)cot(2pi-x)sin(2pi-x)cos(2pi-x) ( - x)sin (3pi2-x) = n pi + pi 4 where n∈ N
Evaluate ∫ (x sin(2x) sin((pi/2)/cos x))/(2x - pi) (for x → 0, pi) dx - Sarthaks eConnect | Largest Online Education Community
![calculus - Limit sine problem: $\lim_{x\to\infty} \frac{x^2}{2x+1}\sin \frac{\pi}{x}$ - Mathematics Stack Exchange calculus - Limit sine problem: $\lim_{x\to\infty} \frac{x^2}{2x+1}\sin \frac{\pi}{x}$ - Mathematics Stack Exchange](https://i.stack.imgur.com/BE3gR.png)
calculus - Limit sine problem: $\lim_{x\to\infty} \frac{x^2}{2x+1}\sin \frac{\pi}{x}$ - Mathematics Stack Exchange
![By Using the Properties of Definite Integrals, Evaluate the Integrals Int_((-pi)/2)^(Pi/2) Sin^2 X Dx - Mathematics | Shaalaa.com By Using the Properties of Definite Integrals, Evaluate the Integrals Int_((-pi)/2)^(Pi/2) Sin^2 X Dx - Mathematics | Shaalaa.com](https://www.shaalaa.com/images/_4:69c56dd9f4ff479abab95f57665ecac1.png)
By Using the Properties of Definite Integrals, Evaluate the Integrals Int_((-pi)/2)^(Pi/2) Sin^2 X Dx - Mathematics | Shaalaa.com
![Giải các phương trình sau: sin(pi/2 + 2x) + căn(3)sin(pi - 2x) = 2: A.x= cộng trừ pi/6 +k2pi,k thuộc Z Giải các phương trình sau: sin(pi/2 + 2x) + căn(3)sin(pi - 2x) = 2: A.x= cộng trừ pi/6 +k2pi,k thuộc Z](https://video.vietjack.com/upload1/quiz_source1/2019/09/p4-c10-1567756698.png)