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

Screen Recording 2023-11-24 at 12.00.30 AM

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1st/2ways: Find the sum 1/7, 10/21, 17/21, 24/21, 31/21 via median.

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

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🪔 Happy Deepavali 🪔 [Nov-12-2023]

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1st way: exp ∫(e^x)/x (1+x log(x)) dx

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RPET 2003 Hindustan: integral ∫sin^4(x)-cos^4(x) 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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Conversion: Permutation - Combination vice versa

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trig integral ∫x^2 cos(x^3) e^sin(x^3) dx

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

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log sq rt integral ∫√x ln(x) dx withOUT u-sub

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2nd way: log sq rt integral ∫ln(x+1)/√(x+1) dx

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2nd/3parts: Checkpoint 1.1 STPM Math T Sem2

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1st/3ways: derivative (x+1)^(1/2) (x+2)^(1/3) (x+3)^(1/4) (x+4)^(1/5) (x+5)^(1/6)

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

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2nd way: integral ∫x^k ln(x) dx = x^(k+1)/(k+1) ln(x) - x^(k+1)/(k+1)^2 + C where C ≠ -1

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Screen Recording 2024-05-11 at 9.05.02 PM

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prob stat: A & B are 2 events s.t P(A)=8/15, P(B)=2/3, & P(AnB)=1/5. Are A & B exhaustive events

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If P and Q are statements, then write the negation of P Q using only the connectives ∧ and ¬

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prob stat: 10 people have a potluck. 5 peoplle will be selected to bring a main dish,

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