Welcome :: Homework Help and Answers :: Mathskey.com
Welcome to Mathskey.com Question & Answers Community. Ask any math/science homework question and receive answers from other members of the community.

13,337 questions

17,804 answers

1,438 comments

35,300 users

i need help on improving how to work this problem

0 votes

Solve the given equation. (Enter your answers as a comma-separated list. Let k be any integer. Round terms to three decimal places where appropriate. If there is no solution, enter NO SOLUTION.)

cos θ sin θ 7 cos θ = 0

θ =

 

asked Apr 8, 2016 in PRECALCULUS by anonymous

1 Answer

0 votes

Step 1:

The trigonometric equation is image.

Solve the equation.

image

Factors are image and image

General solution for image: image

General solution for image.

Since image is greater than one, thus it has no real solutions.

Let image is an integer, then

image

Solution :

The solution of the trigonometric equation

image

answered Apr 9, 2016 by Anney Mentor
This answer is wrong I figured it out and the answer is pie/2+kpie

General solution for image: image

This is also including the answer.

Observe the question,

Let image be any integer, then substitute image values.

Therefore, the solution is,

image

Related questions

asked Feb 26, 2016 in PRECALCULUS by anonymous
asked Feb 26, 2016 in PRECALCULUS by anonymous
asked Apr 8, 2016 in PRECALCULUS by anonymous
asked Feb 23, 2016 in PRECALCULUS by anonymous
asked Apr 24, 2016 in PRECALCULUS by anonymous
asked Apr 8, 2016 in PRECALCULUS by anonymous
asked Apr 8, 2016 in PRECALCULUS by anonymous
asked Apr 8, 2016 in PRECALCULUS by anonymous
...