kitriguin kitriguin

05-12-2017
Mathematics

contestada

Find all the solutions to the equation 7sin^2x -14sinx+2=-5

Respuesta :

harpazo harpazo

05-12-2017

I will get you started.

Let sin x = u

Then 7sin^2x -14sinx+2=-5 become

7u^2 - 14u = - 5

7u^2 - 14u + 5 = 0

Steps:

1. Solve for u.

2. Back- substitute for u.

3. Take the arcsin on both sides to find the angle(s).

You finish.

Answer Link

Otras preguntas

why would immigrints have chosen to live in the middle colonies

How do you find the Greatest Common Factor?

at the pet fair, Darlene's dog weighed 5 times as much as leah's dog. Together, the dogs weighed 84 pounds. how much did each dog weigh? complete the bar model.

oraciones con la palabra entonces

If you move a substance from one container to another and its volume changes, the substance is a, A. solid B. liquid C. gas D. both solid and liquid 10. for the

Writting about my friends in french

What problem did socialist thinkers seek to solve?

Water molecules are polar, with Select one: a. the oxygen side being slightly positive and the hydrogen side being slightly negative. b. the oxygen and hydrogen

Respiration involves the release of energy due to the breakdown of large polymers. What type of a reaction is respiration?

the energy stored in gasoline is??

Q&A Education