Question

I have a trig identities question that i need some explaining on please

Answer 1

ask

Answer 2

sin 120 \[= \sqrt{3} \over 2\]

Answer 3

yes

Answer 4

i dont understand how to have squareroot answers

Answer 5

like how do i solve this w.o a calculator

Answer 6

you want the value of \[\sqrt{3}\]

Answer 7

???

Answer 8

no, how do i know what sin 120 equals without the use of a calculator ?

Answer 9

do you know sine and cosine values for 0,30,45,60,90. 'coz these are important

Answer 10

and sin(pi-x)=sinx

Answer 11

so \[\sin (\pi -x) = sinx\]

Answer 12

?