Cos Itsint los e I-sing

Planning for the possibility that your home might get struck by lighting and catch on fire is part of a plan for ?

Is it true or false i’m trying to pass this test so i can leave school

Which sum or difference identity would you use to verify that cos (180° - q) = -cos q? a.) sin (a -b) = sin a cos b – cos a sin b b.) cos (a -b) = cos a cos b – sin a sin b c.) cos (a -b) = cos a cosb + sin a sin b d.) sin (a + b) = sin a cos b + cos a sin b