展开 (sec^2(θ)-sin(θ))dθ

解答

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(sec^{2} (θ) - sin (θ)) d θ

sec^{2} (θ) d θ - sin (θ) d θ

求解步骤

(sec^{2} (θ) - sin (θ)) d θ

使用分配律:

a (b - c) = ab - a c

a = d θ, b = sec^{2} (θ), c = sin (θ)

= d θ sec^{2} (θ) - d θ sin (θ)

= sec^{2} (θ) d θ - sin (θ) d θ

e x p an d [e^{- t} U (t - 3)]

e x p an d \frac{1}{1 + e ^{- (α (β - θ))}}

e x p an d (ln (t) + 1)^{3}

e x p an d \frac{x ^{2} - 7}{( x + 4 ) ( x - 7 )}

e x p an d (x \circ x + 8) (x)