Question

sin(20-π) = sinΘ
SOLVE ON THE INTERVAL: 0≤Θ<2π

Answer 1

@mathstudent55 help pls?

Answer 2

use the law
\[\sin \left( x-y \right)=\sin x \cos y-\cos x \sin y\]

Answer 3

ok then..?

Answer 4

then u have the value of \[\sin \left( 20-\Pi \right)\]

Answer 5

achieve it first

Answer 6

but whgats sin20

Answer 7

are u have a calculator?

Answer 8

yea but i mean find exact value? shouldnt in be in like radical form?

Answer 9

for example: sqrt 3 /2 ?

Answer 10

wait never mind.. i get that part

Answer 11

ok

Answer 12

wait but how do you get sin 20? cuz you cant use the sin(A-B) rule cuz theres nothing that willsubtract to get 20....

Answer 13

@amistre64