Seudónimo Seudónimo

12-12-2017
Mathematics

contestada

Let cos(−θ)=−3/5

and tanθ>0 .

What is the value of sin(−θ)?

A. -3/5
B. 4/5
C. -4/5
D. 4/3

Respuesta :

MathisLif3 MathisLif3

13-12-2017

cos(-x)=cos(x)=-3/5=a/h
sin(-x)=-sin(x)=-o/h=o/5
we know 3^2+4^2=5^2 so
sin(-x)=4/5 its B

Answer Link

ahncloey ahncloey

15-01-2022

Answer: 4/5

Step-by-step explanation: Took the test

Answer Link

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