lizardking24516
lizardking24516 lizardking24516
  • 11-03-2020
  • Mathematics
contestada

PLEASE HELPP PRE CAL!!

Given..

Tan x = 3/4; sin (pi/2 - x)

What is sinx??

(I know its 3/5 but can someone show me how?!)

Respuesta :

MathPhys
MathPhys MathPhys
  • 11-03-2020

Step-by-step explanation:

tan x = 3/4

Tangent is opposite over adjacent, so draw a right triangle with angle x where the opposite side is 3 and the adjacent side is 4.

Use Pythagorean theorem to find the hypotenuse:

c² = 3² + 4²

c² = 25

c = 5

Sine is opposite over hypotenuse, so:

sin x = 3/5

Answer Link

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