Math test 1

[rumbletalk-chat] sine, cosine, tangent… [pmath](a^2+b^2)=a^2+2ab+b^2[/pmath]   wpmathpub Precise evaluation, almost by inspection. Q: What is the easiest, most fundamental way to precisely evaluate triginometric functions…almost by inspection? And how is it all related to square root? Since: , , … what else? Q: Would you believe that: = … (exactly) almost by inspection? Q: How […]