in trygonometry example 12 in the sollution it is given that . A is acute, cos A is positive when A is acute . my doubt is why this acute angle is taken here. what ur going to say plzz give full explanation to this particular topic. plzz dont tell that it is not in the exam point of view. plzz reply to my question
Displaying ads are our only source of revenue. To help Teachoo create more content, and view the ad-free version of Teachooo... please purchase Teachoo Black subscription.
Please login to view more pages. It's free :)
Teachoo gives you a better experience when you're logged in. Please login :)
Solve all your doubts with Teachoo Black!
Teachoo answers all your questions if you are a Black user!