Ask Experts Questions for FREE Help !
Ask
    mathstudent1's Avatar
    mathstudent1 Posts: 1, Reputation: 1
    New Member
    		  
    #1

    Mar 19, 2008, 06:27 AM
    Solving trig identity
    How do I solve this trig identity? I keep coming up blank!

    sin (theta) cos (theta)
    ________ __ _________ = 0

    -cos(theta) sin(theta)



    I know I need to find the common denominator and end up with

    1
    ___________________________ = 0

    -cos(theta) sin(theta)



    Now what??

    Please help??
    galactus's Avatar
    galactus Posts: 2,271, Reputation: 282
    Ultra Member
    		  
    #2

    Mar 19, 2008, 09:16 AM
    Is this what you mean?:



    If so, you are correct. It simplifies to:




    In that event, there are no values of theta which result in 0 because of the denominator.
Not your question? Ask your question View similar questions
 

Question Tools Search this Question
Search this Question:

Advanced Search


Check out some similar questions!

How do I prove the following Trig Identity? [ 2 Answers ]

2 times secant squared theta = 1/(1-sin theta) + 1/(1+sin theta)

Trig identity [ 5 Answers ]

cot(x) + tan(x) 1-tan(x) 1-cot(x) = 1+tan(x)+cot(x) Please verify if you can!!

Trig identity [ 3 Answers ]

Yes me again - I have one more that is it!! I need to find out if the following is an identity or not: _______ l cos2O = cosO (that is square root cos squared theta equals cos theta) Any help is really appreciated!! Thanks skr

Trig identity [ 3 Answers ]

HELP - I am really bad at trig and need some assistance... I have to verify sin X ______ = csc X - cot anx 1+ cos X Can anyone help me out - give me a place to start??

View more questions Search