Please could anyone explain how to do question 17b? I don't know if I'm missing something ovbious but wouldn't multiplying by theta make it very difficult to integrate? Thanks
Please could anyone explain how to do question 17b? I don't know if I'm missing something ovbious but wouldn't multiplying by theta make it very difficult to integrate? Thanks
Why does (cos theta)= cos(-theta ) and -sin(theta) = sin(-theta )
and how do I remember this and not get confused
Draw the graphs. The cosx graph is reflected in the y axis so any negative value for x could be positive and give the same result. The sinx graph when x<0 is just the negative of the sinx graph when x>0.
Draw the graphs. The cosx graph is reflected in the y axis so any negative value for x could be positive and give the same result. The sinx graph when x<0 is just the negative of the sinx graph when x>0.
thank you. you are a genius I just went on desmos to sketch them
Please could anyone do me a massive favour and post a worked solution to question 16b as I always seem to just get stuck at the same stage in these types, thanks