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charle [14.2K]
3 years ago
12

Simplify ( 1 - cos0)( 1 + cos0) / ( 1 - sin0) ( 1 + sin0)

Mathematics
2 answers:
Leni [432]3 years ago
7 0
That zero with the line through it is theta I believe.
Use the FOIL method to multiply the numerator and denominator out. Then use your Trig Identities (probably in your course content or notes already but you can also google them) to see what it is equal to.
Ivan3 years ago
6 0

Step-by-step explanation:

Here, we need to simplify the following expression :

\dfrac{(1-cos\theta)(1+cos\theta)}{(1-sin\theta)(1+sin\theta)}

Using the identity as :

(a-b)(a+b)=a^2-b^2

\frac{1-cos^2\theta}{1+sin^2\theta}

Since, sin^2\theta+cos^2\theta=1

= \dfrac{sin^2\theta}{cos^2\theta}

Since, \dfrac{sin\theta}{cos\theta}=tan\theta

So, \dfrac{(1-cos\theta)(1+cos\theta)}{(1-sin\theta)(1+sin\theta)}=tan^2\theta    

So, the correct option is (c). Hence, this is the required solution.

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TiliK225 [7]
Formula of the daily compound interest:
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4 0
3 years ago
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3 0
2 years ago
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Ghella [55]

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(9u+w)^2<br> (use foil).................
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Answer:

Step-by-step explanation:

(9u + w)(9u + w)

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o: 9u * w

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