Differentiate the functions from the first principles e^cos x - Sarthaks eConnect | Largest Online Education Community
![If tan (theta/2) = sqrt((1-e)/(1+e)) tan(phi/2),then show that cos phi=(cos theta-e)/(1-ecos theta). If tan (theta/2) = sqrt((1-e)/(1+e)) tan(phi/2),then show that cos phi=(cos theta-e)/(1-ecos theta).](https://d10lpgp6xz60nq.cloudfront.net/web-thumb/643864745_web.png)
If tan (theta/2) = sqrt((1-e)/(1+e)) tan(phi/2),then show that cos phi=(cos theta-e)/(1-ecos theta).
Evaluate ∫ e^(cos x)/(e^(cos x) + e^(-cos x)) (for x → 0, pi) dx - Sarthaks eConnect | Largest Online Education Community
![Question Video: Finding the Derivative of a Function Involving Trigonometric and Exponential Functions Using the Product Rule | Nagwa Question Video: Finding the Derivative of a Function Involving Trigonometric and Exponential Functions Using the Product Rule | Nagwa](https://media.nagwa.com/746173652841/en/thumbnail_l.jpeg)