Prove that : sin^4(2x)=3/8-1/2cos4x+1/8cos8x Someone plzz help!!!
1 answer:
You might be interested in
Answer:
STEP
1
:
12
Simplify ——
1
Equation at the end of step
1
:
-15 k 5
(((————)+((8•—)•k))-————————-10k)+(12•k2))-5k)-12
(k2) 2 (k3)(k2)
STEP
2
:
Equation at the end of step 2
-15 k 5
(((————)+((8•—)•k))-————————-10k)+(22•3k2))-5k)-12
(k2) 2 (k3)(k2)
STEP
3
:
Equation at the end of step
3
:
-15 k 5
(((————)+((8•—)•k))-——————-10k)+(22•3k2))-5k)-12
(k2) 2 (k3)k2
STEP
4
:
5
Simplify ——
k3
Equation at the end of step
4
:
-15 k 5
(((————)+((8•—)•k))-————-10k)+(22•3k2))-5k)-12
(k2) 2 k3k2
STEP
5
:
k
Simplify —
2
Equation at the end of step
5
:
-15 k 5
(((————)+((8•—)•k))-————-10k)+(22•3k2))-5k)-12
(k2) 2 k3k2
STEP
6
:
15
Simplify ——
k2
Equation at the end of step
6
:
15 5
(((——)+4k2)-————-10k)+(22•3k2))-5k)-12
k2 k3k2
