Explain how finding 4x384 can help you find 4x5384

1 answer:

7 0

<span>Using the distribution property of multiplication which states that a(b + c) = a x b + a x c. Hence, 4 x 5384 = 4(5000 + 384) = 4 x 5000 + 4 x 384 = 20,000 + 4 x 384. Therefore, finding the value of 4 x 384 will help you to find the value of 4 x 5384 because, adding the value of 4 x 384 to 20,000 gives you the value of 4 x 5384.Hope this helps. Let me know if you need additional help!</span>

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Use a graph in a (-2π, 2π, π/2) by (-3, 3, 1) viewing rectangle to complete the identity.

yaroslaw [1]

First, notice that:

$2\tan (\frac{x}{2})=2\cdot(\pm\sqrt[]{\frac{1-cosx}{1+\cos x})}$

And in the denominator we have:

$1+\tan ^2(\frac{x}{2})=1+\frac{1-\cos x}{1+\cos x}=\frac{1+cosx+1-\cos x}{1+cosx}=\frac{2}{1+\cos x}$

then, we have on the original expression:

$\begin{gathered} \frac{2\tan(\frac{x}{2})}{1+\tan^2(\frac{x}{2})}=\frac{2\cdot\pm\sqrt[]{\frac{1-\cos x}{1+cosx}}}{\frac{2}{1+\cos x}}=\frac{2\cdot(\pm\sqrt[]{1-cosx})\cdot(1+\cos x)}{2\cdot(\sqrt[]{1+cosx})} \\ =(\sqrt[]{1-\cos x})\cdot(\sqrt[]{1+\cos x})=\sqrt[]{(1-\cos x)(1+\cos x)} \\ =\sqrt[]{1-\cos^2x}=\sqrt[]{\sin^2x}=\sin x \end{gathered}$

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1 year ago

What is the measure of angle A?

Ilya [14]

Answer:

Step-by-step explanation:

O is double D. And A is equal to O. Hence 2*48=96

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3 years ago

Read 2 more answers

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