tri. question help?

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Refine.J

2006-09-09 1:46 am

what is tangent squared(240 degrees) minus sec squared(240 degree)?

回答 (2)

[匿名]

2006-09-09 1:48 am

✔ 最佳答案

tan^2(240) - sec^2(240)

Using our Trig. Identities:
sec^2 = tan^2 + 1

substituting

tan^2(240) - tan^2(24) + 1 = 1

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[匿名]

2006-09-09 8:54 am

its the number o

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