Verify sin^4x-sin^2x=cos^4x-cos^2x is an identity. Please dumb it down, i don't get this lesson.
1 answer:
Answer:
Step-by-step explanation:
cos^2+sin^2 = 1 ( rule)
cos^4x-cos^2x simplify
- cos^2( -cos^2 +1 ) -cos^2 common
or -cos^2 ( 1-cos^2)
since cos^2 + sin^2 = 1
substitute : -cos^2 ( sin^2 )
substitute : -(1-sin^2 ) ( sin^2)
multiply : -sin^2 + sin^4 or sin^4 - sin^2
it is verified that sin^4 -sin^2= cos^4-cos^2
hope it helps
You might be interested in
Answer:
2.5 cm = 620miles
1cm = ??
1cm = (620÷2.5) miles
1cm = 248miles.
BY GERALD GREAT
Answer:
Yes.
Step-by-step explanation:
Each side of a square must be congruent and parallel to its opposite side.
Answer:
A i think
Step-by-step explanation:
1 = 84
2 = 40
3 = 54
4 = 18
5 = 35
6 = 21
7 = 33
8 = 26
9 = 30
10 = 8
11 = 27
12= 28
13 = 21
14 = 13
15 = 10
( Task 2 ) Hope this helps :)
Answer:
X=4
Step-by-step explanation:
It is vertical so it is X=__. It is on x=4 so that is the answer
