Palestine123 Palestine123

12-02-2019
Mathematics

contestada

If Sin x=-12/13 and tan x is positive, find the values of cos x and tan x.

Respuesta :

12-02-2019

since tan x is positive, then cos x is also negative, by well known identity

[tex]cos \: x = - \sqrt{1 - {sin}^{2} x} = - \frac{5}{13} [/tex]

hence

[tex]tan \: x = \frac{sin \: x}{cos \: x} = \frac{12}{5} [/tex]

Answer Link

Otras preguntas

Solve for x. minus, start fraction, 17, divided by, 2, end fraction, equals, start fraction, x, divided by, 4, end fraction − 2 17 = 4 x

Choose a single thing as your subject, such as a room, a house, a park, or a person, and describe it in a stream of consciousness style. Your scene should inclu

A solution is made by dissolving 27.8 g of nicotine (molar mass = 160 g/mol) in 145 g of cyclohexane (C6H12) to form 142 mL of solution. Calculate the mole frac

twenty five samples of six items each were selected from the assembly line of a machine. on measurement of a critical dimension, the mean of 25 sample was repea

The graph shows the proportional relationship between time, in minutes, spent skateboarding and the number of calories burned. Calories Burned 720 660 600 540 4

select all expressions that represent the area of the quadrilateral shown.

5×1+2× 1 10 +8× 1 100 +5× 1 1000 =as a decimal

whick expression represents ''k times the quantity g plus h''

rthehrehrehrteghergkjrhtilgushgiusdgwr

What is the value of the expression below when y, equals, 3y=3? 3, y, squared, minus, 4, y, plus, 8 3y 2 −4y+8