2(cos2x - sin2x)
Step-by-step explanation:
Y = sin2x + cos2x
Differentiate wrt x
dy/dx = cos2x . 2 - sin2x . 2
= 2(cos2x - sin2x)
Answer:
6
Step-by-step explanation:
When you divide by a multiple of 10 or when you multiply by a multiple of 10.
Answer:
<h2>350 children</h2>
Step-by-step explanation:
x = Number of adults
x + x + 68 = 632
2x = 632 - 68
2x = 564
x = 282
282 + 68 = 350
350 children.
We can always check.
282 + 350 =
It equals 632, so we know our answer is correct.
Answer:
x= [ -10, 1)
Step-by-step explanation:
<u>Given</u>
<u>Solving first one</u>
- −7x−10≤60
- -7x ≤ 70
- x ≥ -10
<u>Solving second one</u>
<u>Combined:</u>
<u>Interval</u>
