hithav
IiTeachChem
•Created by Opt on 5/7/2025 in #💭│doubts
Divisibility/PnC/Binomial
sum will become 45000
15 replies
IiTeachChem
•Created by Opt on 5/7/2025 in #💭│doubts
Divisibility/PnC/Binomial
ok so i did by binomial. write 3 and 7 as 4k-1 and 5 and 9 as 4k+1 the thing will effectively become 2^a1+2+(-1)^a2+(-1)^a4 after this take cases for a1 when its 0 there will be no solutions and when its 1, (-1)^a2+(-1)^a4 should be zero this is possible when a2 and a4 are not odd or even at the same time so you will get (10)(10)(5)(5)2 and then when a1 >=2 it will be divisible by 4 so now both a2 and a4 should be even or odd at the same time so you will get 8(10)(10)(5)(5)2 cases
15 replies
IiTeachChem
•Created by Opt on 5/7/2025 in #💭│doubts
Divisibility/PnC/Binomial
Yeah thats what
15 replies
IiTeachChem
•Created by Opt on 5/7/2025 in #💭│doubts
Divisibility/PnC/Binomial
So they are asking total number of quintuplets possible?
15 replies
IiTeachChem
•Created by Opt on 5/7/2025 in #💭│doubts
Divisibility/PnC/Binomial
What exactly are they asking
15 replies
IiTeachChem
•Created by Gamertug on 5/6/2025 in #💭│doubts
Probability
how did you do 1/3 and 1/6 arent there N balls so shouldnt you do 3/Nand 6/N-1
46 replies
IiTeachChem
•Created by ns on 5/1/2025 in #💭│doubts
Electrostats doubt- Field just below a hemispherical surface
these are rings
66 replies
IiTeachChem
•Created by ns on 5/1/2025 in #💭│doubts
Electrostats doubt- Field just below a hemispherical surface
Thats for discs right
66 replies
IiTeachChem
•Created by ns on 5/1/2025 in #💭│doubts
Electrostats doubt- Field just below a hemispherical surface
I will send the calculation tomorrow i dont have a pen and its hard writing on laptop
66 replies
IiTeachChem
•Created by ns on 5/1/2025 in #💭│doubts
Electrostats doubt- Field just below a hemispherical surface
No it doesnt
66 replies
IiTeachChem
•Created by ns on 5/1/2025 in #💭│doubts
Electrostats doubt- Field just below a hemispherical surface
integrate this from 0 to pi/2
66 replies
IiTeachChem
•Created by ns on 5/1/2025 in #💭│doubts
Electrostats doubt- Field just below a hemispherical surface
66 replies
IiTeachChem
•Created by Opt on 4/25/2025 in #💭│doubts
Differential calculus? Honestly, idk.
16 one all i got is the degree should be 4 or lower i am not getting anywhere after this
84 replies
IiTeachChem
•Created by Opt on 4/25/2025 in #💭│doubts
Differential calculus? Honestly, idk.
there is equality also right so it doesnt matter
84 replies
IiTeachChem
•Created by Opt on 4/25/2025 in #💭│doubts
Differential calculus? Honestly, idk.
so ans is 5
84 replies
IiTeachChem
•Created by Opt on 4/25/2025 in #💭│doubts
Differential calculus? Honestly, idk.
question no 15 assume the function is Ae^2x+Be^3x (we take 2 and 3 because they are the roots of x^2-5x+6) and then satisfy f(0)=1 and f'(0)=0 conditions and then you will get f(x) to be 3e^2x-2e^3x so a =3 b =2 and h(0)=1
84 replies
IiTeachChem
•Created by Opt on 4/25/2025 in #💭│doubts
Differential calculus? Honestly, idk.
then you will get 7 roots
84 replies
IiTeachChem
•Created by Opt on 4/25/2025 in #💭│doubts
Differential calculus? Honestly, idk.
there will be 2 more critial pts -1 and +1
84 replies
IiTeachChem
•Created by Opt on 4/25/2025 in #💭│doubts
Differential calculus? Honestly, idk.
you have to check f'(x) also
84 replies