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

OSU Math 1151 Practice1: Compute the derivative (1)-(8)

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

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The sum of 3 numbers in AP is 15 & the sum of their squares is 3. Find the numbers.

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Express the sum of the digits of the number (1000^20 - 20) in decimal notation

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2 ways: log derivative log3(x)

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Alternate way: Derivative y=ln((x^4-8)^5/(x^6+5x)cos(x))

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Evaluate these 7 integrals ...

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trig integral ∫sin^2(x)/cos^6(x)) dx

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AP Calculus 2nd way: integral ∫(1-√x)/(1+√x) dx

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