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Simplify (sin^2 0+cos^2 0) (sin 0+cos 0)
Can someone help? I don’t understand.

Simplify (sin^2 0+cos^2 0) (sin 0+cos 0) Can someone help? I don’t understand.-example-1

2 Answers

5 votes

Answer:

C

Explanation:

To start this problem off, we should know an important trig rule:


\sin^2(\theta)+\cos^2(\theta)=1

From here, it is simple:


(\sin^2(\theta)+\cos^2(\theta))(\sin(\theta)+\cos(\theta))=\\1(\sin(\theta)+\cos(\theta))=\\\sin(\theta)+\cos(\theta)

C

I hope this helps! Let me know if you have any questions :)

User DanielLC
by
8.1k points
2 votes

Answer:

C)
sin\theta+cos\theta

Explanation:


(sin^2\theta+cos^2\theta)(sin\theta+cos\theta)


sin\theta+cos\theta

Recall the Pythagorean Trigonometric Identity where
sin^2\theta+cos^2\theta=1, so
1(sin\theta+cos\theta)=sin\theta+cos\theta

User Dennise
by
7.8k points

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