Sunday

October 26, 2014

October 26, 2014

Posted by **kate** on Monday, January 25, 2010 at 8:11pm.

tan delta=-0.75

- pre calc -
**MathMate**, Monday, January 25, 2010 at 8:18pmThe domain of tan(x) is from -π/2 to π/2. So the reference angle for tan(δ)=-0.75 is between -&pi/2; to 0.

Having found the reference angle δ (approx. -0.64 radians), the general solution will be

δ+kπ where k=an integer.

- pre calc -
**kate**, Monday, January 25, 2010 at 8:22pmso what will be the solution

- pre calc -
**MathMate**, Monday, January 25, 2010 at 11:17pmA pre-calculus answer is -0.64 + kπ radians, where k∈ℤ.

- pre calc -
**MathMate**, Monday, January 25, 2010 at 11:20pmThe reason for the kπ is because tangent is a periodic function, with period equal to π radians.

Also, for your solution, you will need to evaluate more accurately (accuracy according to instructions, 3-4 decimals normally) the value of arctan(-0.75).

**Answer this Question**

**Related Questions**

chemistry - consider the following reaction at 298K 4Al(s)+3O2(g) yields 2Al2O3(...

CHEMISTRY - Please explain. The enthalpy changes for two different hydrogenation...

Chemistry - Please explain. The enthalpy changes for two different ...

Chemistry(Please check answers) - 1) For a reaction delta Go is more negative ...

math - Compute delta(y) and dy for the given values of x and dx=delta(x) y=x^2...

Chemistry - 2M +6HCl–>2MCl+3H2 Delta H= -638.0 Kj HClg—>HCl aq= Delta H -...

CALCULUS help please - Find the following limit where f(x) = 4x^2 − 3x. ...

Chemistry - Clapeyron equation: dp/dT = ΔS / ΔV My textbook says, ...

Chemistry - The following standard free energies are given for 25 degrees ...

Calculus-Solved - Incorrect - calculate delta y for f(x)= x^(3/2) with x= 4 and ...