Question

Se o CosY = 3/7, determine o valor de TanY

Answer 1

Resposta:

Explicação passo-a-passo:

tanY = senY/cosY

sen²Y + cos²Y = 1

sen²Y + (3/7)² = 1

sen²Y = 1 - 9/49

sen²Y = 40/49

senY = $\sqrt{40}$/7

senY = $2\sqrt{10}$/7

tanY = ($2\sqrt{10}$/7)/3/7

tanY = $2\sqrt{10}$/3