2 years ago

Which of the following would be an acceptable first step in simplifying the expression

Mathematics

1 answer:

krek1111 [17]2 years ago

7 0

Answer: A

Step-by-step explanation: Because it can be simplified twice.

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80.75 my dude

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____________________

luda_lava [24]

Angle BOC = 120

PROOF

Angle A + Angle B + Angle C = 180

So, Angle B + Angle C = 120 (Angle A = 60)

Now 1/2 (Angle B + Angle C) = 60

1/2 Angle B + 1/2 Angle C = 60..............i

In triangle BOC

1/2 Angle B + 1/2 Angle C + Angle BOC =180

(BO and CO are angle bisectors)

Or 60 + Angle BOC = 180 (using i)

OR ANGLE BOC = 120

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4 years ago