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Mnenie [13.5K]
3 years ago
9

Simplify (1 − cos x)(1 + cos x). 1 cos2 x sin2 x tan2 x

Mathematics
1 answer:
Phoenix [80]3 years ago
3 0
Answer

The expression is equivalent to sin^{2}x

The first step is to multiply the two expressions between parentheses :
(II)
There is a trigonometric identity that states :

Working with this expression :
⇒
(I)
Using the equation (I) in (II) :
⇒


Read more on Brainly.com - brainly.com/question/3907632#readmore
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