Solve (sin x + cos x)(sin x + cos x)

Reggie 2021-03-08 Answered
Solve (sinx+cosx)(sinx+cosx)
You can still ask an expert for help

Expert Community at Your Service

  • Live experts 24/7
  • Questions are typically answered in as fast as 30 minutes
  • Personalized clear answers
Learn more

Solve your problem for the price of one coffee

  • Available 24/7
  • Math expert for every subject
  • Pay only if we can solve it
Ask Question

Expert Answer

smallq9
Answered 2021-03-09 Author has 106 answers
Use Distributive Property of FOIL method to obtain:
sin2x+2sinxcosx+cos2x
Use the identity: sin2x+cos2x=1
=1+2sinxcosx
Use the double-angle identity: sin2x=2sinxcosx
=1+sin2x
Not exactly what you’re looking for?
Ask My Question

Expert Community at Your Service

  • Live experts 24/7
  • Questions are typically answered in as fast as 30 minutes
  • Personalized clear answers
Learn more