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Yeah I just got it! I just realised that I took 90 degrees to mean pi instead of 1/2piThank you sooooooooooooooo much for the Help, Jazaka Allah khairan!! May Allah S.W.T bless you with high grades Ameeen, and May Allah S.W.T have mercy on you and your family.
Okay to get the value answer Q10 U need to make sure u have done part b correctly..
it is in short, a circle in forth quadrant, and there is a line 1/4 pi below x axis and a line 1
Now in the sketch below. You see, the largest point is in purple point. And to find it first we find the length of blue line under the green lines, to this use pythagoras theorem , so the short blue line is √2^2 +2^2 = 2√ 2
now to find the blue line till the purple point add a radius , which is 2, 2+2√2
now to find the largest Real Number, we have to find the value of xaxis above the purple point,
we know the angle is 1/4pi
so cos (1/4pi) = adj/ 2+2√2
adj = 2+√2
Thanks man, I appreciate it
And neat username: phyzac (fy-zc) rhymes with Issac (as in Newton). Cool