Math Questions

We had a quiz today on radicals and pythagrean therum

 

Differentiate y=(2x^3+5-3)^1/2

Jk

Find the value of x if 8x^2+4=-6

 

https://en.wikipedia.org/wiki/P_versus_NP_problem

 

x=-pi/6

 

If you can't take the heat, GET OUT OF THE KITCHEN

 

And what about all answers between 0 and 2pi?

 

Lemme give you a very simple question

A cube has a length of 9 m, width is 5 m and a height of 2 m. What is it's volume and surface area?

 

That's not a cube, that's a rectangular prism

 

Em, oops. It's been a while since I did this

 

impossible!!!!!!!!!

________________________________

Solve:
cos(x)sec(x)+20(x^10)=
1+20(x^10)
take the derivative:
0+200(x^9)=
200(x^9)

________________________________

BASICALLY 11pi/6

 

Heres a pretty easy one:
Don't use a calculator.
49!-78!-46!-19!-193!-124!-54-12!-174!+3!
=?

 

Wrong, there's two solutions between 0 and 2pi, you've only given one
It's 7pi/6 and 11pi/6 and without restrictions there would be infinite solutions.

 

@President Trump I'll do both:

Differentiation problem:
y=(2(x^3)+5-3)^1/2
then
y=(2(x^3)+2)^1/2
then differentiate (using product rule)
((dy)/(dx))=(6(x^2))/(2((2(x^3)+2)^1/2))
Ta-da! Your answer!

Other problem:
8(x^2)+4=-6
8(x^2)=-10
x^2=-10/8
x^2=-5/4
x does not exist

Partial credit :/

Freaking forgot that there's another solution :P