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

Reggie

Reggie

Answered question

2021-03-08

Solve (sinx+cosx)(sinx+cosx)

Answer & Explanation

smallq9

smallq9

Skilled2021-03-09Added 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

Do you have a similar question?

Recalculate according to your conditions!

Ask your question.
Get an expert answer.

Let our experts help you. Answer in as fast as 15 minutes.

Didn't find what you were looking for?