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SIZIF [17.4K]
3 years ago
8

Hi !! can someone help prove these please

Mathematics
1 answer:
beks73 [17]3 years ago
5 0

Step-by-step explanation:

Here's the first one for ya. I can't tell what the first denominator of the second one is [CosB, CscB, or SecB?], so unless you get back to me on that, then I can't help you with it.

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