2 years ago

A coin is tossed three times. Find the probability that head and tail show alternately.

Mathematics

1 answer:

levacccp [35]2 years ago

7 0

Answer:

1.5/3

Step-by-step explanation:

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128.34 as a mixed number in simplest form

KonstantinChe [14]

128.34=12817/50 THAT IS THE ANSWER FOR THIS QUESTION

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3 years ago

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Anastasy [175]

Answer:

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Step-by-step explanation:

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3 years ago

40 is 50 percent of which number

FinnZ [79.3K]

Answer:

Step-by-step explanation:

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3 years ago

(sin x)(tan x cos x - cot x cos x) = 1 - 2 cos2x

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As

$\tan x=\dfrac{\sin x}{\cos x}$
$\cot x=\dfrac{\cos x}{\sin x}$

we have

$\sin x(\tan x\cos x-\cot x\cos x)=\sin x\left(\sin x-\dfrac{\cos^2x}{\sin x}\right)=\sin^2x-\cos^2x$

Recalling that $\cos2x=\cos^2x-\sin^2x$ , we end up with

$-\cos2x=1-2\cos2x$
$1=\cos2x$
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(where $n$ is any integer)

$\implies x=n\pi$

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3 years ago

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bazaltina [42]

Yes what is the four question

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