Is by using transitions cuz it allows the reader to understand when there’s a shift in events but also the oder
Answer:
1) - 2 / (cos x + sinx)^2.
Step-by-step explanation:
1) I assume you want the derivative of (cos x - sin x) / ( cos x + sin x).
y' = (cosx + sinx)( -sinx - cosx) - (cosx - sinx)(-sinx + cosx)
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(cosx + sinx)^2
= -sinxcosx - cos^2x - sin^2x - sinxcosx - (-sinxcosx+cos^2x+sin^2x-sinxcosx
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(cosx + sinx)^2
= -2sinxcosx - 1 - ( -2sinxcosx + 1 ) / (cosx + sinx)^2
= -2sinxcosx - 1 - ( -2sinxcosx + 1 ) / (cosx + sinx)^2
= - 2 / (cos x + sinx)^2.
First, an equation for the total number of days required to write her paper:
Total = 1493 words + (269 words/day)(x) = 3376 words.
Simplifying, (269 words/day)x = 3376 words - 1493 words
If you solve this linear equation, you'll find that x = 7. That means Amy can finish her paper in 7 days.
