exam tmr send help (1 Viewer)

[maxxxxx]

how would someone do 15(d)
i understand it’s the gradient of a tangent in that domain but how do i find that without a point?

 

[cossine]

So what you want to do first, is graph the functions. Every 1/4 of period of sin(x), there is important transition. E.g. midline to peak, peak to midline etc.

Once you do that identify the point and use calculus.