french math help pls

[stone prism]

i dont know how to do it

[hoary plinth]

i'd assume to use angle addition formulaes

and csc you just rearrange

[stone prism]

so wait how would i do that

[hoary plinth]

well we know cos/sin/tan of the general angles; 30,45,60,90,180,270

[stone prism]

yes sir

[hoary plinth]

so just find two numbers of those that add up to whatever number is in the problem. for example, the first number is 120, which is
sin(60+60)

we could also use double angle ofrmula but adding formula wokrs too

and do the same with the rest of the angles ✅

[stone prism]

can u show

would the anwser be 2 >?

@hoary plinth

[hoary plinth]

yes

answer is 2

[stone prism]

thanks mate

[hoary plinth]

np ✅

[empty solstice]

thats so easy bro