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what would a 62/70 or 89% in 2020 hsc align to?

this question worst case scenario u can just use ur calc and test points. U realise that as y-> a big value, dy/dx -> 0+. U can immediately rule out a,c, d. But if u want the 'proper' way, carrots gives a great definition. (this is just to point out that in an exam u can still manage the get the...

for this question i basically just made sample graphs lol for y=x^2, if take the inverse u get y=sqrt x (assuming u take the positive), diffing it gives u 1/(2sqrt x), subbing x=1 gives a gradient of 1/2. now if u diff y=x^2, u get y=2x, subbing in x=1 u get y=2. Gradient of 2 and 1/2 is not...

imo just algebra, most of the stuff u learn prior to yr10 makes no difference in yr11 n 12 extension. almost all new topics lol, but every question has algebra so ig its the most important thing. trigonometry helps too.

does this work?

i cant upload the solutions...file is too large o_O

what do u guys think a 70% in syd grammar 2023 trial aligns to?

my friend is at a school in top 40 in nsw here are his ranks: b6 based on last cohort english advanced: 13/120 - 35b6 english ext1: 7/35- 9b6 math ext1 - 1/95 - 43b6 math ext2 - 5/42 - 17b6 physics - 2/50 -14b6 chem - 9/55 - 9b6 hes hoping for 99.5+ to make dent. is his atar okay or should...

ye this was part of 3u vectors lol but idk how to do it...and idk what 4u vectors r

omg thank u so much!!:angel:

thanks!

thanks !! :)

yep it does thanks !! 😁 gl w english (i hate it too)

wait but for sin^-1(sqrtx) there is a restriction on range... its [0,pi/2] instead of [-pi/2, pi/2], is this becus the domain got restricted so the range also changed?

also how would you graph y=sin^-1 (sqrtx) and y=sin^-1 (x^2)?

thank you so much!!

how do u find the domain and range of y=sin(2cos^-1 x)?