Question

2sinπ/8= √2-√2 solve this math equation​

Answer 1

Answer:

We have

cos

4

π

=

2

1

or, 1−2sin

2

8

π

=

2

1

or, 1−

2

1

=2sin

2

8

π

or, 2−

2

=4sin

2

8

π

or, 2sin

8

π

=

2−

2

. [ Since sin

8

π

is positive]