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3 years ago

The prefix kilo- means what number?

Mathematics

2 answers:

bearhunter [10]3 years ago

7 0

Answer:

×1000

Step-by-step explanation:

Kilo means multiplication by 1000.

Kilo-metter=1000 meters

Kilo-gram=1000 grams

Montano1993 [528]3 years ago

6 0

Answer:

A thousand. Kilo means a thousand. Kilometer. 1 thousand meters

Step-by-step explanation:

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Scorpion4ik [409]

Answer:

Step-by-step explanation:

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3 years ago

The surface area of A and B of the following cuboid are 35 cm" and 21

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3 years ago

I need help proving this ASAP

Ket [755]

Answer:

See explanation

Step-by-step explanation:

We want to show that:

$\tan(x + \frac{3\pi}{2} ) = - \cot \: x$

One way is to use the basic double angle formula:

$\frac{ \sin(x + \frac{3\pi}{2} ) }{\cos(x + \frac{3\pi}{2} )} = \frac{ \sin(x) \cos( \frac{3\pi}{2} ) + \cos(x) \sin( \frac{3\pi}{2}) }{\cos(x) \cos( \frac{3\pi}{2} ) - \sin(x) \sin( \frac{3\pi}{2}) }$

$\frac{ \sin(x + \frac{3\pi}{2} ) }{\cos(x + \frac{3\pi}{2} )} = \frac{ \sin(x) ( 0) + \cos(x) ( - 1) }{\cos(x) (0) - \sin(x) ( - 1) }$

We simplify further to get:

$\frac{ \sin(x + \frac{3\pi}{2} ) }{\cos(x + \frac{3\pi}{2} )} = \frac{ 0 - \cos(x) }{0 + \sin(x) }$

We simplify again to get;

$\frac{ \sin(x + \frac{3\pi}{2} ) }{\cos(x + \frac{3\pi}{2} )} = \frac{- \cos(x) }{ \sin(x) }$

This finally gives:

$\frac{ \sin(x + \frac{3\pi}{2} ) }{\cos(x + \frac{3\pi}{2} )} = - \cot(x)$

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Answer:

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Step-by-step explanation:

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