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frick you.
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Pn(x)
f(a) + f’(a)(x-a) + (f’’(a)(x-a)2)/2! +…+ (f'n(a)(x-a)n)/n!
Parametric curve tan. line slope
m= dy/dx = y’(t)/x’(t)
Polar curve tan. line slope
m= dy/dx = f’(θ)sinθ+f(θ)cosθ / f’(θ)cosθ-f(θ)sinθ
Area of region bounded by a polar curve
A= ½ ∫αβ r2dθ
Area of region between two polar curves
A=½ ∫αβ ( [ f(θ) ]² - [ g(θ) ]² ) dθ
Half angle formula sin²x
(1-cos(2x)) /2
Half angle formula cos²x
(1+cos(2x)) /2