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these are the identities i need

sinΘcosΘ=cosΘ

sec^4Θ-tan^4Θ=sec²Θcsc²Θ

(1+sec²Θ)/(1-secΘ)=(cosΘ-1)/(cosΘ)

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15y ago

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Q: Can you help me prove math trig identities?
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