Question

Sabemos que senx=3/5.determine o valor de tgx

Answer 1

sen² x + cos² x = 1
cos² x = 1 - sen² x
cos² x = 1 - (3/5)²
cos² x = 16/25
cos x = √16/√25
cos x = 4/5

tg x = sen x/cos x
tg x = 3/5/4/5
tg x = 3/4