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alexgriva [62]
3 years ago
12

Average of 766 and 878

Mathematics
1 answer:
Greeley [361]3 years ago
7 0
(766+878)÷2=1644÷2=822
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Answer:

To prove that ( sin θ cos θ = cot θ ) is not a trigonometric identity.

Begin with the right hand side:

R.H.S = cot θ = \frac{cos \ \theta}{sin \ \theta}

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so, sin θ cos θ ≠ \frac{cos \ \theta}{sin \ \theta}

So, the equation is not a trigonometric identity.

=========================================================

<u>Anther solution:</u>

To prove that ( sin θ cos θ = cot θ ) is not a trigonometric identity.

Assume θ with a value and substitute with it.

Let θ = 45°

So, L.H.S = sin θ cos θ = sin 45° cos 45° = (1/√2) * (1/√2) = 1/2

R.H.S = cot θ = cot 45 = 1

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So, sin θ cos θ = cot θ is not a trigonometric identity.

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to communication companies offer calling plans with company X it cost $0.30 to connect and then $0.03 for each minute with compa
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