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Goshia [24]
2 years ago
10

20 POINTS

Mathematics
1 answer:
OLEGan [10]2 years ago
5 0

Step-by-step explanation:

1 + - 1 can also be written as 1 - 1.

1 + - 1

= 1 - 1

= 0

Hence proved.

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valentinak56 [21]

Answer:

A and D

Step-by-step explanation:

Since tangent is opposite/adjacent,

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Step-by-step explanation:

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