How do I factor this?
cos^4x - sin^4x
2 answers:
Answer: https://socratic.org/questions/how-do-you-simplify-cos-4x-sin-4x#618537
Answer:
Step-by-step explanation:
FYI,
a² - b² = (a + b)(a - b)
f(x) =
-
= (cos²x + sin²x)(cos²x - sin²x) =
= <em>(cos²x + sin²x)(cos x + sin x)(cos x - sin x)</em>
If you need to simplify, then
f(x) = 1 × (cos²x - sin²x) = <em>cos(2x)</em>
You might be interested in
Answer:
one class 25 and the other 26
Step-by-step explanation:
That's because if there is 24 students in each class then 3 students will be left in which the other class will take two and the other 1 student
Answer:
1.898 ×10^27 kg for Jupiter
and for Neptune 1.024×10^26 kg
Answer:
-20
Step-by-step explanation:
10
-10
-------
0
-8
-2
------
-10
-6
-4
-------
-20
answer is (-20)
Answer:
0.49
Step-by-step explanation:
49 / 100 = 0.49
Answer:
-3
Step-by-step explanation: