# I need a calculus review...my mid-term exam is in 1.5 hours...HELP?!? please?I need formula's and review on: points of discontinuity, domain and range, limits, horizontal asymptotes, continuous...

I need a calculus review...my mid-term exam is in 1.5 hours...HELP?!? please?

I need formula's and review on: points of discontinuity, domain and range, limits, horizontal asymptotes, continuous functions, period and amplitute, finding half-life, slope between points, derivatives, equatiions of line to cuves (tangent lines) and position, velocity and accelleration

also, theres something i've never seen before...

e.g. cscx=2.3 on [0,2π] (π is pi) what is this and how do i solve it?

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### 1 Answer

cscx = 2.3 on (0, 2pi)

To solve for x:

Solution:

I hope you want to solve cosecx = 2.3.

But cosecx =1/sinx =2.3. Therefore,

sinx = 1/2.3

So x= arcsin(1/2.3) = 25.77146172 degree aaaapproximately.

Also x=25.7715+180 = 205.77146172 degree.

Or, x = 0.44979686 radians or x = 3.591389514 radians.

For other things, you study well and raise your doubt if you find any difficulty. There are expert editors through who will be glad to help you.