Simplifying Products of Binomials Involving Trigonometric Functions, Ex 1

[ccconrad]

You taught me more calculus in 2 minutes than I've learned in the past 8 I think I'm in love. ;)

[ericchhun]

So the part that I don't get is the cos^2x+sin^2x-1=0 and you get the answer -sin^2x. How did you get -sin^2x?

[muscle]

thanks for your educational videos friend

[mainJattYamla]

thanks a lot, man. You're helping.

[rajujamadarjamadar]

Next week g its attachments video sphere of influence triangle trigonometry

[rajujamadarjamadar]

However engineering math tricky as Sol n