Question

Question #0b782

Answer 1

1) `sin(theta+pi/4)=1/sqrt2=sin(pi/4)`

`=>x+pi/4=npi+(-1)^npi/4" whete "nin ZZ`

`=>x=npi+(-1)^npi/4-pi/4" whete "nin ZZ`

2) `tan(2theta-pi/4)+1=0`

`=>tan(2theta-pi/4)=-1=tan(-pi/4)`

`=>2theta-pi/4=npi-pi/4" whete "n in ZZ`

`=>theta=(npi)/2" whete "n in ZZ`