展开 csc(θ)(sqrt(17),-8)

解答

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csc (θ) (17, - 8)

17 csc (θ), - 8 csc (θ)

求解步骤

csc (θ) (17, - 8)

= (17, - 8) csc (θ)

使用分配律:

a (b - c) = ab - a c

a = csc (θ), b = 17,, c = 8

= csc (θ) 17, - csc (θ) \cdot 8

= 17 csc (θ), - 8 csc (θ)

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