Thursday

August 21, 2014

August 21, 2014

Posted by **jhay** on Sunday, February 19, 2012 at 3:37am.

2sin squared θ-1= 0 if 180 degrees is less than or equal to θ is less than or equal to 360 degrees

2.) prove:

2cotθ/cot squared θ -1 = sin2 θ sec2 θ

- math -
**Reiny**, Sunday, February 19, 2012 at 8:31am2 sin^2 Ø = 1

sin^2 Ø = 1/2

sin Ø = 1/√2

if 180 ≤ Ø ≤ 360°

then Ø = 225° or 315°

2.

Did you mean:

2cotØ/(cot^2 Ø - 1) = sin^2 Ø sec^2 Ø ?

If so, then it is not and identity, (I tried it with Ø=20°)

did you mean:

2cotØ/cot^2 Ø - 1 = sin^2 Ø sec^2 Ø ?

If so, then it is not and identity, (I tried it with Ø=20°)

did you mean:

2cotØ/cot^2 Ø - 1 = sin 2Ø sec 2Ø ?

If so, then it is not and identity, (I tried it with Ø=20°)

etc.

- math -
**micheal**, Thursday, February 21, 2013 at 6:17am4^(x 1) - 6^x - 2.9^(x 1) = 0

**Related Questions**

Calculus - Determine the measure of A if 0 degrees is less or equal to angle A ...

trig - I have to retype this. For which angles theta, with 0 degrees less than/...

trig - on the same set of axes: (0 degrees is greater than or equal to x and x ...

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

Math - Solving Trig Equations - Solve each equation for 0 is less than and equal...

Trig - Find all solutions in the interval 0 degrees<θ<360 degrees. If...

math - For which angles beta, with 0 degrees less than/equal to beta less than/...

Math - Solving Trig Equations - Solve each equation on the interval: 0 is less ...

Trigonometry - There are four complex fourth roots to the number 4−4√...

trigonometry - solve the equation: 4 tan^2 x + 12 sec x +1 =0, for 0 degrees is ...