Pascal's triangle nth triangular number [examples]

[Chinese Dub of “Demon Slayer”] Encounter with Upper Rank Two! Watch the Chinese Dub to See Shinobu

7 Views

MP 8,93,96,97,99 Hindustan: Evaluate ∫ sec(x)/(sec(x)-tan(x)) dx

35 Views

MP 98 Hindustan: Evaluate (i) ∫e^loge(x) dx (ii) ∫e^(-loge(x)) dx

31 Views

logic: tautology (¬p→q)∧(¬p→¬q) →p

9 Views

2 ways: The following measurements were taken by an antique dealer as he weighted to the ...

11 Views

2 ways: integral ∫(x-a)/(x+a) dx

2 Views

Careful: arc sin(sin(5π/4)) ≠ ...

10 Views

prob stat In a sample of n= 6 scores, 5 of the scores are each above the mean by one point.

5 Views

Prove Σ1/((k-1)(k+1))=(3n^2-n-2)/(4n(n+1)) where k=2 to n ∀n ≥ 2

4 Views

alternate way: count sum 1+3+5+ ... +(2n-1)

0 View

2nd part/3parts: Mean of -11,-2,7,...,70 SAME as Mean -11 & 70

0 View

exp integral e^x (f(x) + f'(x)) dx

1 View

commutative: ab=ba via "picture"

1 View

JEE Main integral x^2/(a+bx)^2 dx

2 Views

2 ways: integral ∫x/(x+a) dx

2 Views

log 𝖎𝖓𝖙𝖊𝖌𝖗𝖆𝖑 ∫ln(ln(x))/x dx

2 Views

companion vid: trig derivative 1/2sin^2(tan(x)) + C

7 Views

Lamar U 2nd way: evaluate integral ∫√(1+2ln(7x))/2 +10x^3/(x^4 +9) dx

0 View

count comb: How many subsets does {{{118},{{18,19,20,21,...,118}},{{{118}}} }} have?

2 Views

MPPET 1993 BIT Ranchi 1982 Hindusta: trig integral ∫ (1+cos^2(x)/sin^2(x) dx

2 Views