tag:blogger.com,1999:blog-5639270444406781623.post8207655535104261075..comments2017-04-10T00:50:56.427-07:00Comments on Math Concepts Explained: Fundamental Trigonometric IdentitiesShaun Klassenhttps://plus.google.com/118218839015832704471noreply@blogger.comBlogger3125tag:blogger.com,1999:blog-5639270444406781623.post-2391761534149356852011-07-05T10:55:33.085-07:002011-07-05T10:55:33.085-07:00Hi Denise,
Sorry for the late reply.
You have be...Hi Denise,<br /><br />Sorry for the late reply.<br /><br />You have been taught correctly that what you do to one side, you must do to the other side. Add to them, multiply them, square them, whatever. Same treatment for each side keeps the expression equal.<br /><br />Your math book is correct, though at first glace it doesn't seem right. It is saying to multiply the numerator and SK19http://www.blogger.com/profile/17228027233405770851noreply@blogger.comtag:blogger.com,1999:blog-5639270444406781623.post-75262133800589330832011-06-07T09:15:00.633-07:002011-06-07T09:15:00.633-07:00Have a question - am learning these identities, an...Have a question - am learning these identities, and for my entire algebra training, I've been told you can't do to one side of an equals sign what you don't do to the other. i.e. if you do it on one side, you have to do it on the other. Yet, my math book is teaching me that it's okay (when proving an identity) to multiply the LHS by (say) a common denominator (numerator and Denisenoreply@blogger.comtag:blogger.com,1999:blog-5639270444406781623.post-55883861416661485502010-12-08T07:06:56.979-08:002010-12-08T07:06:56.979-08:00Thanks so much for this blog! I am in grade 12 adv...Thanks so much for this blog! I am in grade 12 advanced functions and I still don't know how to do trig identities and we are learning them in the next 2 days. Since I didn't understand the basics from grade 11, I am trying to catch up on what I did not learn. Thanks again!Anonymousnoreply@blogger.com