Question

senx=1/2 calcule cosx tgx

Answer 1

(senx) ² + (cosx) ²= 1 ²
(1/2) ²+ (cosx) ²= 1
1/4 + cosx ²= 1
cosx ²= 1 - 1/4
cosx ²= 3/4
cosx= √3/4
cosx= √3/2

tgx= senx/cosx
tgx= 1/2/ √3/2
tgx= 1/2 x 2/√3
tgx= 2/2x √3
tgx= 1/√3
tgx= 1 x √3/√3 x √3
tgx= √3/3