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andreyandreev [35.5K]
3 years ago
5

What is this 1=-t-5?

Mathematics
2 answers:
JulijaS [17]3 years ago
6 0

Answer:

t=-6

Step-by-step explanation:

1=-t-5

1+5==-t-5+5

6=-t

t=-6

Semenov [28]3 years ago
4 0

Answer:

t = -6

Step-by-step explanation:

1 = -t - 5

-t = 1 + 5

-t = 6

t = -6

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Which expression is equivalent to 2cos^2(x/2)- cos(x)?<br> Edge 2020
olchik [2.2K]

Given:

The expression is

2\cos^2(\dfrac{x}{2})-\cos (x)

To find:

The expression which is equivalent to the given expression.

Solution:

We have,

2\cos^2(\dfrac{x}{2})-\cos (x)

We know that,

\cos x=2\cos^2 (\dfrac{x}{2})-1

Using this formula, the given expression can be written as

2\cos^2(\dfrac{x}{2})-\left(2\cos^2(\dfrac{x}{2})-1\right)

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3 years ago
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ivolga24 [154]
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Step-by-step explanation:

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Step-by-step explanation:

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