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

STPM Math T Sem. 2: Ex 11.2 Given that f(x)=tan(x), show that ...

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logic Idempotent law show x=xVx

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

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Pantun Melayu [Sorong papan tarik papan]

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logic: tautology (¬p→q)∧(¬p→¬q) →p

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Pantun Melayu [Pulau Pandan Jauh Ke Tengah]

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examples: 2x2 matrix which is its own inverse

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A bag contains 20 identical red marbles, 20 identical green marbles, & 20 identical blue marbles.

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2 ways: Find a formula for d/dx[f^m(x) g^n(x)], where f & g are differentiable functions ...

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Prove Σ1/((k-1)(k+1))=(3n^2-n-2)/(4n(n+1)) where k=2 to n ∀n ≥ 2

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prob stat: x̄=∑xk where k=1,2,3,...,n?

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2 ways: derivative a^f(g(x))

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logic: contradiction p∧¬p

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implicit differentiation Find dy/dx, sin(xy) +x/y = x^2 -y

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Find the area via Pick's Theorem

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sq root log derivative √ ln(f(x))

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1st/2ways: Evaluate lim sin(5x)/sin(9x) as x tends 0

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2 ways: derivative (ax+b)^n

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trig Show tan(x/2) = ...

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1st/2ways: logic Import-Export

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