Resuelve las siguientes ecuaciones trigonométricas, hallando la primera respuesta con tu calculadora y si el ángulo es negativo hacer dar la vuelta con el circulo trigonométrico.

2senx − 1 = 0

secx = 4cosx

2cos2 − 5cosx + 2 = 0

sen2x + 3cos2x = 2

tan2x ∗ cosx + cos2x = 1

hi, i am not sure about this one but i think its d,

hope this !

answer: the first one

step-by-step explanation: use a calculator and divide the minutes by the dollars.

part a

x     y

0     8

1     7.5

2     7

3     6.5

4     6

5     5.5  

for every hour i deducted .5 inches from the length of the candle

part b

it is a function because for every x value there is only one y value

part   c

for every x value there is only one y value

x       y

0       8

1       7.6

2       7.2

3       6.8

step-by-step explanation: