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## HPlourde 2 years ago what is (cosx/sinx)/sinxcosx simplified

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1. abb0t

$\frac{ \cos(x) }{ \sin(x) } \times \frac{ \sin(x)\cos(x) }{ 1 }$

2. zepdrix

$\large \frac{\left(\dfrac{\cos x}{\sin x}\right)}{\sin x \cos x}$Woops I dunno if you're looking at it correctly abbot :O Only the top one is a fraction.

3. zepdrix

$\large \frac{\left(\dfrac{\cos x}{\sin x}\right)}{\sin x \cos x} \qquad = \qquad \left(\frac{\cos x}{\sin x}\right)\frac{1}{\sin x \cos x}$

4. HPlourde

ya but what about multiplying by the recipricol.... cause i am seriously confused.

5. zepdrix

$\large \left(\frac{\cancel{\cos x}}{\sin x}\right)\frac{1}{\sin x \cancel{\cos x}}$

6. zepdrix

Ok here's the thing with the reciprocal :) lemme explain.

7. HPlourde

ok sounds good

8. zepdrix

The bottom fraction is actually this,$\large \frac{\sin x \cos x}{1}$ So if you wanted to write it as a division of fractions, you could write it like this,$\large \frac{\left(\dfrac{\cos x}{\sin x}\right)}{\sin x \cos x} \qquad = \qquad \frac{\left(\dfrac{\cos x}{\sin x}\right)}{\left(\dfrac{\sin x \cos x}{1}\right)}$And then from here, we could multiply by the reciprocal of the bottom fraction.

9. HPlourde

aha!!!!! now it's making sense!!!

10. zepdrix

When we started this problem, we weren't dividing fractions. Only the top one was a fraction. Maybe that's why there was a little confusion :)

11. HPlourde

i think so...this is the only one that i've been confused over so far... thank you:)

12. HPlourde

i got the right answer. thanks a billion

13. zepdrix

yay!

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