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2 years ago

4/a = 16/32

Mathematics

2 answers:

alexira [117]2 years ago

7 0

Hey!

Let's make a proportion:

$\frac{4}{a} = \frac{16}{32}$

Cross multiply

$32 \times 4 = 64$

Divide by 16

$128 \div 16 = 8$

<em>That means your answer is 8</em>

$\framebox{Answer = 8}$

Anna11 [10]2 years ago

3 0

The answer is 8.

4 x 4 = 16

8 x 4 = 32

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2 years ago

3sina-4sin4a/sin5a<br> if a=-45 degree

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Given:

The given expression is:

$\dfrac{3\sin a-4\sin 4a}{\sin 5a}$

To find:

The value of the given expression at $a=-45$ .

Solution:

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$=\dfrac{-3\sin (45)+4\sin (180)}{\sin (45)}$

On substituting $\sin (180)$ , we get,

$=\dfrac{-3\sin (45)+4(0)}{\sin (45)}$

$=\dfrac{-3\sin (45)+0}{\sin (45)}$

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2 years ago