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alina1380 [7]
2 years ago
10

Alexa is preheating her oven before using it to bake. The initial temperature of the

Mathematics
1 answer:
WARRIOR [948]2 years ago
5 0

Answer: i needed pointsss srry

Step-by-step explanation:

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Would appreciate some help with this:<br><br> Verify (sinq+cosq)^2 - 1 = sin2q
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See Discussion below

Discussion:

(sinq + cosq)^2 =                                     => (a +b)^2 = a^2 + 2ab + b^2

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Setting a = b = q in the trig identity:

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2 sinq*cosq


Combining (*) and (**)

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Hence

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(sinq + cosq)^2  - 1 =   sin(2q)  

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