Question

1)cos88° * cos32° - sin88° * sin2° =

2) sin5° * cos5° - cps50° * sin5° =

Answer 1

1)cos88° * cos32° - sin88° * sin2° = 0.034*0.848+0.999*0.034=0,028+0,027=0,055
2) sin5° * cos5° - cps50° * sin5° = 0,087*0,996-0,642*0,087=0,086-0,055=0,031