prob stat: A bag contains 5 red balls & 3 green balls. A ball is drawn at random &

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then replaced. Another ball is drawn. What is the prob. that both balls are green?

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解锁英语掌握：每天只需5道题，轻松进步有保障！第 1 课

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解锁英语掌握：每天只需5道题，轻松进步有保障！第 1 课

鲤鱼说英语

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If u=a+ib is a complex #, then complex conjugate of u*=a-ib. ...

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If u=a+ib is a complex #, then complex conjugate of u*=a-ib. ...

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U Penn: Evaluate trig integral ∫(sin^2(x) -cos^2(x))/(sin(x)-cos(x))^2 dx

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U Penn: Evaluate trig integral ∫(sin^2(x) -cos^2(x))/(sin(x)-cos(x))^2 dx

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logic: Show p→q ≡¬ p∨q

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logic: Show p→q ≡¬ p∨q

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2nd way: ∫cos(x)/√(sin^2(x)+4sin(x)+3) dx

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2nd way: ∫cos(x)/√(sin^2(x)+4sin(x)+3) dx

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Swinburne U 2nd way: e^(-e^x) e^x dx

0:34

Swinburne U 2nd way: e^(-e^x) e^x dx

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1st/2 parts stat: SLR ∑ŷk = ∑yk where k=1,n

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1st/2 parts stat: SLR ∑ŷk = ∑yk where k=1,n

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review: prob stat Population variance vs sample variance

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review: prob stat Population variance vs sample variance

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

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

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MP 2000 Hindustan: Evaluate ∫(tan(x)+cot(x))^2 dx

0:50

MP 2000 Hindustan: Evaluate ∫(tan(x)+cot(x))^2 dx

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inverse trig Derivative arc sin(x)

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inverse trig Derivative arc sin(x)

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integral ∫(x^2-x+1)/(x^2+x+1) dx

2:47

integral ∫(x^2-x+1)/(x^2+x+1) dx

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trig derivative y=√sin(√x)

1:34

trig derivative y=√sin(√x)

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Find dy/dx if x=a(θ-sin(θ)) & y=a(1-cos(θ))

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Find dy/dx if x=a(θ-sin(θ)) & y=a(1-cos(θ))

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trig integral ∫1/(cos(x)(1+cos(x)) dx

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trig integral ∫1/(cos(x)(1+cos(x)) dx

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exp integral ∫1/(e^(ax+b) (1+e^(ax+b)) dx

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exp integral ∫1/(e^(ax+b) (1+e^(ax+b)) dx

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2nd/4ways: trig derivative sin(x)

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2nd/4ways: trig derivative sin(x)

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COMMON MISTAKE: trig integral sin^2(x) dx ≠ sin^3(x)/3 + c

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COMMON MISTAKE: trig integral sin^2(x) dx ≠ sin^3(x)/3 + c

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COMMON MISTAKE: (1) logb(m) logb(n) ≠ logb(m+n)

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COMMON MISTAKE: (1) logb(m) logb(n) ≠ logb(m+n)

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sq root derivative √x [Good to know the result]

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sq root derivative √x [Good to know the result]

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