If u=f(y/x) then prove that x∂u/∂x + y∂u/∂y = 0

UC Davis #10: count prove Σi = n(n+1)/2 where i=1 to n

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

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logic Idempotent law show x=xVx

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AI 2008 Hindustan 2nd/2 ways: Evaluate trig integral ∫2cos(x)/(3 sin^3(x)) dx

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lim x/e^x? as x→∞

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A box contains 8 blue & 6 red socks. What is the number of ways that 2 socks can be drawn ...

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AP Calculus 2nd way trig integral ∫x^2 cos(x) dx

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AP Calculus 2nd way: integral ∫ (3^(x+1)-7^(x-1))/21^x dx

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2nd way: trig integral ∫√(sec^5(x)/sin^3(x)) dx

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Screen Recording 2024-02-16 at 8.23.14 PM

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Columbia U: 9th/9 ways Evaluate the indefinite integral ∫1/(1+e^x) dx withOUt u-sub

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Lamar U: #9 1st way: trig integral ∫sec^2(9x) tan^3(9x) dx

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2 ways: integral x√(x-5) dx

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Screen Recording 2024-02-16 at 9.14.39 PM

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2 ways: derivative x √√x

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Simplify the following statements using only the connectives ∧, ∨ and ¬

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A bag contains 5 red balls & 3 green balls. A ball is selected at random &

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A 2 digit number is equal to the sum of the product of its digits & the sum of its digits.

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UC Davis: differentiate y=(3x+1)^2

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prob stat: To obtain Grade A, Ben must achieve an average of at least 70 in 5 tests.

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