Question

$2 \sin4 \alpha = \frac{1}{2}$
please help
don't search it on internet
​

Answer 1

Answer:

do you need explainations

Step-by-step explanation:

Answer 2

Answer:

1−(sin

4

α+cos

4

α)

=1−(sin

2

α+cos

2

α−2sin

2

αcos

2

α)

=1−{1−

2

(2sinαcosα)

2

}

=

2

1

sin

2

2α