Question

sendo cos ×=1/5 calcule sen e tg

Answer 1

temos que cos x = 1/5
sen² x + cos² x = 1
sen² x + 1/25 = 1
sen² x = 24/25
sen x = √24/5 = 2√6/5
tg x = sen x/cos x = (2√6/5)(1/5) = 2√6

Answer 2

Ola Stanninha

sen²(x) + cos²(x) = 1

sen²(x) + 1/25 = 25/25

sen²(x) = 24/25

sen(x) = √24/5

tg(x) = sen(x)/cos(x) = √24/5 / 1/5 = √24

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