Question

Se, tg x = 1/3, o valor de TG2X será:

Answer 1

Resposta:

3/4

Explicação passo-a-passo:

tg2x =

tg(x + x) =

tg(x + x) = (tgx + tgx)/(1-tgx.tgx)

tg2x = 2tgx/(1-tg²x)

tg2x = 2(1/3)/(1-1/9)

tg2x = (2/3)/(8/9)

tg2x = (2/3).(9/8)

tg2x = 3/4