log in electro
In this ques value of 10^1/3 (ans is 10 cube root) is not given are we supposed to just remember it? If so what are other values we are supposed to remember
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@Dexter
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Kuch questions m hi Hota h esa
Or baaki sir se puchle @iTeachChem
dekho mostly de dete hain, otherwise jaise log 2 ka hota hai 0.3 aur 1/3 0.33 hota hai toh matlab log 2 se thoda sa zyada toh yea, but ha agar integer me aaya toh problem hogi
jee mains paper numerical are closest integer based
you have to report the answers in closest integers
Integer m answer given h
Then what are we supposed to do just leave question?
Umm find cube root ofc
If u have time
No bro just imagine cube root of 8 is 2 and cube root of 27 is 3 so cube root of 10 should be close to 2 right?
if you use this thought you can use binomial approx to get exact root 10 easily.
root 10=2+x -> x is small
(2+x)³= 10
2³(1+x/2)³=10
(1+x/2)³=10/8
1+3x/2=5/4
3x/2=1/4
x=1/6.
not a lengthy approach if you get this root 10 lying very close to 2 wala point
root 10≈2+1/6
watte hero. waise yea 2.155 hi hai. i shamelessly bruteforced it.
iteration 1: 2.5
iteration 2: 2.1 (easy till here)
iteration 3: 2.15
Then guess to 2.155
+solved @@Ameya² @myst1cboomer
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