2nd way: trig 𝖎𝖓𝖙𝖊𝖌𝖗𝖆𝖑 ∫sin(x)cos(x)cos(4x)cos(8x)cos(16x)cos(32x)cos(64x) dx

4 ways: sum Find the sum of the values of 4+3i for i=1,2,...,100

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Solve the following differential equation cos^2(x)dy/dx +y = tan(x)

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Alternate way: Find 1+2+3+... +(n-1)+n via "polynomial degree 2"

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2nd/3ways: trig integral ∫sec(x) dx

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

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

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"baby" fact: exp e^(ix)

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লাশটানা গরুর গাড়ি | Bengali Moral Stories | Cartoon | Haunted | Horror Animation

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2 ways: trig Show tan(2x)=2/(cot(x)-tan(x))

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We lost original x's but still know mean x̄ & n. Now we collected m new observations.

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

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IGCSE 2023 p2 Add Math #4

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3rd/3ways: trig integral ∫sec(x) dx

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Screen Recording 2024-05-12 at 8.48.55 PM

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2nd/2ways: r-Permutations

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Review Add Math: Show a^m a^n = a^(m+n) where m & n are any 2 positive integers

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trig integral Find cos^2(x) sin(x) dx

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OSU Math 1151 Practice4: Compute the derivative

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stat: SLR Properties of residuals

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Find the expected value & the variance of a geometric r.v. X

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