time up

benbuks: Q. y= e^arctanx

y ' =…?

e^arctanx/(x^2 + 1)

score card
ARITHMETIC*****************
KENDYZYMA ******************5pts
DEJT4U***********************5pts
D.DON*************************
DRNIYI4U.**********************5pts

done with round 2 .



welcome you all to round three (elimination round )


3mins for each question ....

take note .

e^arctanx/(1+x^2). You may nt decide to add it.

you gat 6 questions .





Q1 loading........88%..

Q.y= cos²x

y ' ' =…?

benbuks: Q.y= cos²x

y ' ' =…?

-2COS2X

benbuks: Q.y= cos²x

y ' ' =…?

-2

time up

d.don.*********5pts...

next question loading........99%

-2(cos^x-sin^x)

Q $ e^√x dx

benbuks: Q $ e^√x dx

2e^(x/2)

benbuks: Q.y= cos²x

y ' ' =…?

2e^ x/2

benbuks: Q $ e^√x dx

No idea

benbuks: Q $ e^√x dx

xe ^rt/2

time up

none got. it



solution loading.......

solution

put t=√x
=> x =t²

dx=2tdt

=> 2$te^t dt

=> e^√x (√x -1) + c

nxt question loading....95%.....

Q what is d derivative of y=arc tan (x^2 - 1)

2x/(x^2-1)^2+1

benbuks: Q what is d derivative of y=arc tan (x^2 - 1)

2x/((x^2-1)^2 + 1)

time up

benbuks: Q what is d derivative of y=arc tan (x^2 - 1)

2x/(x^4 - 2x^2 + 2)

benbuks: Q what is d derivative of y=arc tan (x^2 - 1)

2x/(x4 - 2x2 + 2)

kendyzma ********5pts

d.don.*************5pts.

nxt question loading......98%.....

Q d/dx arc.cosh(e^2x) = …?

2e^2x/rt(e^4x-1