Hi,
After doing a few past papers (getting 115-120 in them), one of the big problems i have noticed with me is that i write out long solutions which crunches my time away.
So how detailed should our solutions be. See if a question requires us to solve sin(t) = -1/2 for 0 < x < 360 to find minimum velocity or whatever, should we do
the angle whose sine is 1/2 is 30 degrees,
as sine is negative in the 3rd and 4th quadrant , then
t = 180 + 30, 360 - 30
.: t = 210, 330
or just
sin(t) = -1/2
.: t = 180 + 30, 360 - 30
ie t = 210, 330
Would both of these get full marks.
I have Success one HSC and they seam to write "short" solutions. Would these solutions still get full marks?
After doing a few past papers (getting 115-120 in them), one of the big problems i have noticed with me is that i write out long solutions which crunches my time away.
So how detailed should our solutions be. See if a question requires us to solve sin(t) = -1/2 for 0 < x < 360 to find minimum velocity or whatever, should we do
the angle whose sine is 1/2 is 30 degrees,
as sine is negative in the 3rd and 4th quadrant , then
t = 180 + 30, 360 - 30
.: t = 210, 330
or just
sin(t) = -1/2
.: t = 180 + 30, 360 - 30
ie t = 210, 330
Would both of these get full marks.
I have Success one HSC and they seam to write "short" solutions. Would these solutions still get full marks?
