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sin theta = (under root 3 + 1) divided by 2 times under root 2 cos theta = (under root 3 - 1) divided by 2 times under root 2 Find the value of theta. Please look at the shared image.

sinθ=(√3+1)÷2 cosθ=(√3-1)÷2 Find the value of

What makes medicine a difficult subject to be studied and taught?

When we have to measure the argument of a complex number then if we consider theta to be taken clockwise the angle is negative and if we consider taking it anticlockwise the angle is positive. But in case of a complex number the only information I have is which quadrant the number lies in, not it's direction. How can I then measure its argument? I've made many errors because of this confusion, can someone please explain to me in a video lesson?

what is real change or permanence?

I would be interested to hear from students about this question. What do you find challenging about studying Shakespeare? What would help you? What do you like about studying his plays?

I would love to hear what students find most difficult about English...

Statistic question

If I understand correctly, from the map of plate boundaries and direction of the plate's movement in my book, seismic activity is associated with collisional plate boundary but there is not much explanation on this beyond this. Can someone please explain more on this? Is the level of activity less than that at a conservative margin since the plates are moving less rapidly or is there actually more activity due to the extreme pressure?

Or is it simply enough to know that they're related at A level?