Answered

Get personalized and accurate responses to your questions with IDNLearn.com. Ask your questions and receive prompt, detailed answers from our experienced and knowledgeable community members.

Solve : cos X + sin X = 0
Pls all answers in radians
thanks

Sagot :

AL2006idn
cos (X) + sin (X) = 0

Subtract cos(x) from each side:

sin(x) = -cos(x)

Divide each side by cos(x) :

sin(x) / cos(x) = -1

But sin/cos = tangent

tan(x) = -1

x = 135° and 315°

x = 3/4 pi radians  and  7/4 pi radians
Your engagement is important to us. Keep sharing your knowledge and experiences. Let's create a learning environment that is both enjoyable and beneficial. Thank you for visiting IDNLearn.com. We’re here to provide clear and concise answers, so visit us again soon.