evaluating integral help PLS!!! | Mathematics | Page 1

frigid maple Dec 21, 2022, 3:17 AM

#

Can anyone give me direction for how I can go about evaluating this? I tried finding out through Photomath and it uses a weird substitution thing that is beyond my knowledge.

rare grailBOT Dec 21, 2022, 3:17 AM

#

frigid maple Dec 21, 2022, 3:23 AM

#

pls😭

sand jolt Dec 21, 2022, 3:36 AM

#

a

#

weierstrass substitution

#

find in youtube

frigid maple Dec 21, 2022, 3:39 AM

#

sand jolt find in youtube

we can’t use that tho since we haven’t learned abt it so is there an alternative method

sand jolt Dec 21, 2022, 3:40 AM

#

aa

#

multiply by the conjugate

#

It's an idea, I'm not sure it will work

#

xd

frigid maple Dec 21, 2022, 3:42 AM

#

sand jolt It's an idea, I'm not sure it will work

tysm will try

#

Damn idk what to do from here

sand jolt Dec 21, 2022, 3:47 AM

#

no, that doesn't seem like a good idea

#

seriously can't occupy weierstrass???

#

is illegal?

frigid maple Dec 21, 2022, 4:02 AM

#

yeah idk he only lets us use stuff we’ve learned

sand jolt Dec 21, 2022, 4:59 AM

#

idk other form, I solved it with weierstrass, and everything turned out perfect, everything was simplified, which I can assure you that this exercise was made to be solved with weierstrass

#

it can be done without it, but it takes a lot of ingenuity

robust ocean Dec 21, 2022, 6:38 AM

#

frigid maple Damn idk what to do from here

Seperate them

#

Like for example one fraction would be 15sinx/(9sin sq -16 cos sq)

#

Notice ur numerator has sin

#

So you rewrite the sin sq in the denominator as (1- cos sq)

#

So now ur denominator is 9-25 cos sq

#

Now take cos x=t substitution

#evaluating integral help PLS!!!