bewellplus.gsu.edu
Kaleigh75 Kaleigh75
  • 17-07-2014
  • Mathematics
Answered

Solve : cos X + sin X = 0

Pls all answers in radians

thanks

Verified Answer :

AL2006
AL2006 AL2006
  • 17-07-2014

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

Answer Link

Related Questions

what do you need to study the most about fractions to be ready for the test
70 x 10 3 word form
What event surrounding WWI had the greatest impact on america
Which of the following correctly describes an argument 1 An emotional appeal based on ethics and credibility 2 A sentimental appeal based on emotions and intere
1 This text is a poem Which of the following are features youwould expect to find in a poem Tick two boxesshort linesan introduction and conclusionchapterssome
Which ocean does the International Date Line pass through
How long does it take for a new species to arise Have we ever witnessed a new species arising like in any laboratories or otherwise possibly with creatures with
Find the range of fxx4 for the domain 3 2 1 1 A 7 6 5 3 B 7 6 5 4 C 7 6 5 4 D 7 6 5 3
Who was responsible for allocating materials establishing production priorities and setting prices for all materials A William McAdoo B Bernard Baruch C Joseph
What reasons did humanists give for wanting to reform society Explain