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.

13,459 questions

17,854 answers

1,446 comments

811,143 users

Verify that 18˚ is a solution of the equation

0 votes

 

sin 2A = cos 30˚

asked Jul 14, 2013 in TRIGONOMETRY by andrew Scholar

1 Answer

0 votes

sin 2A = cos 30˚

sin (90-x) = cos x

sin 2A = sin (90-30)

sin 2A = sin (60)

2A = 60

A =30˚

30˚is the solution.

answered Jul 14, 2013 by bradely Mentor

Related questions

...