Monday

January 26, 2015

January 26, 2015

Posted by **Anonymous** on Thursday, November 14, 2013 at 9:48pm.

cos(theta-42 degrees)=-1

What is the general solution and what is the solution????

- Pre calculus -
**Reiny**, Thursday, November 14, 2013 at 10:23pmcos(Ø - 42°) = -1

I know cos 180° = -1

Ø - 42 = 180

Ø = 222° , only one solution between 0° and 360°

(look at the graph of cos Ø )

The period of cos(Ø-42) is 360°

so a general solution is

Ø = 222° + 360k° , where k is an integer.

**Answer this Question**

**Related Questions**

math - how to define arc cosine(cosine x) for -360 deg<x< 360 deg?? a ...

Pre Cal - 2cos 4theta + 1 = 0 i know how to find the degrees (the last step of ...

Algebra II - Find all values of theta given that theta is between 0 degrees and ...

Pre-Calculus - I need help-I do not understand. The question is this: Write 2x+y...

Trig(continued) - 2)Find the solution of sin2 theta = cos theta if 0 -< theta...

Algebra II - Multiple Choice (theta) means the symbol 0 with the dash in it. 1.)...

Math - Trigonometry - For how many values of theta such that 0<theta<360 ...

trig - find two values of theta, zero degrees is than or equal to theta which is...

Trig(3 all with work) - 1)Find the exact value of cos 105 by using a half-angle ...

Physics (Calc Based) - I understand how to solve this problem ,however cannot ...