3 years ago

How to complete the proof

Mathematics

1 answer:

meriva3 years ago

5 0

You done that's how you do it<span />

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Cos(0.5)+cos(0.5+2(3.14159265))+cos(0.5+4(3.14159265))

aleksandr82 [10.1K]

Answer:

2.63274768567

Step-by-step explanation:

First, note that 3.1415... is p, so 2(3.1415...) is 2pi and 4(3.1415...) is 4pi.

2pi and 4pi are full rotations, which will lead to the same cosine (i.e. cos(x) = cos (x+2pi) = cos(x+4pi) = ... = cos (x+2k*pi)).

So, the expression equals cos0.5 + cos 0.5 + cos0.5 = 3cos0.5 = 3(0.87758256189) = 2.63274768567

I hope this helps! :)

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3 years ago

An angle whose measure is more than 90 but less than 180 is called an obtuse angle

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Answer:

That's correct

Step-by-step explanation:

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2 years ago

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What is the rule of -3,18,-108,—,—,—

lisabon 2012 [21]

Hi! ❄

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The rule for this sequence is 'multiply by -6'.

Verification ↓

-3*(-6) $\stackrel\checkmark{=}$ 18

18*(-6) $\stackrel\checkmark{=}$ -108

So the rule for the sequence is 'multiply by -6'

And the Common ratio is -6.

Hope that made sense !!

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$\star\tiny\pmb{calligraphy}\star$

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2 years ago

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Evaluate the expression [(12x2.4) -(8.4*0.6)] +27-5.1

MariettaO [177]

Answer:45.66

Step-by-step explanation: Simplify the expression.

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3 years ago

(PLZ HELP 20pts)If the graph of function g is 6 units below the graph of function f, which could be function g? f(x)=-2x+7

defon

Answer:

Step-by-step explanation:

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3 years ago