Question

2)
sin 8 =
complete the following activity to find value of coso
5
1. We know sin20 + cos20 = 1
( )? + cos' 0 = ( ) substituting values
cos? 0 = ( ) - ( ) = ( )
cos 0 = ( ) taking square roots.​

Answer 1

Answer:

2sin30+cos0+3sin90

2(21)+1+3(1)

1+1+3=5