Question

Estou precisando de ajuda.

Answer 1

Resposta:

a)

cos 45=x/12  ==>x=12 *√2/2=6√2

b)

tan 30 =x/6 ==> x =6* √3/3 =2√3

c)

cos 60=2/x ==>x=2/(1/2) ==>x=4

d)

cos 60=3/x ==>x=3/(1/2)=6

e)

cos 45 =3√2/x =x=3√2/(√2/2) =6

f)  

sen 30 =x/10  ==>x =10 * 1/2=5

g)

cos 60 =50/x ==>x =50/(1/2) =100