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1st/3 ways: Show 1+2+3+...+n=n(1+n)/2 via picture
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2 ways: Find x if (3-x), -x, & √ (9-2x) are A.P
3 Views
3rd/3 ways: Express (4x-17)/((x+4)(2x-3)) in partial fractions via withOUT cover rule
1 View
AI 2008 Hindustan: Evaluate integral ∫ 2/3 cos(x)/sin^2(x) dx
22 Views
MP 8,93,96,97,99 Hindustan: Evaluate ∫ sec(x)/(sec(x)-tan(x)) dx
15 Views
MPPET 1996 Hindustan: trig integral ∫ sin^2(x) -cos^2(x)/(sin^2(x) cos^2(x)) dx
29 Views
AI 2008 Hindustan 2nd/2 ways: Evaluate trig integral ∫2cos(x)/(3 sin^3(x)) dx
7 Views
RPET 2003 Hindustan: integral ∫sin^4(x)-cos^4(x) dx
2 ways: exp integral ∫(p^x + q^x)/r^x dx
The time i reincarnated as a slime Season 4 & Movie film TVアニメ第4期制作決定 特報 - Official Trailer
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3 ways: derivative e^y=x
2 ways of "counting" (a+b)^2 = a^2+2ab+b^2
Find the derivative of f(x)=(1+2x^2)(x-x^2) in 2 ways
alternate way: count sum 1+3+5+ ... +(2n-1)
trig integral ∫sin(x) cos(x) cos(2x) cos(4x) cos(8x) cos(16x) cos(32x) dx
"baby" fact: exp e^(ix)
UC Davis: #10 trig integral ∫sin(x)/(1+sin(x)) dx
1st/2parts: 2 (elementary) rules
Properties of Determinants [examples with 2x2 matrix]
exp integral ∫(1+e^x)/(1-e^x) dx