Thursday

July 31, 2014

July 31, 2014

Posted by **Blake** on Wednesday, April 27, 2011 at 8:23pm.

Types of Identities:

Double Angle, Half Angle, Sum and Difference of Sine, Cosine, and Tangent, Pythagorean, Reciprocal, Quotient.

Thanks

- trig -
**Blake**, Wednesday, April 27, 2011 at 8:35pmPIa = pi*a

PI/2 = pi/2

- trig -
**Mgraph**, Wednesday, April 27, 2011 at 8:36pmE=-20cos(pi*a/4)

- trig -
**Blake**, Wednesday, April 27, 2011 at 8:39pmAny chance you could show a bit of work? Thanks.

- trig -
**Mgraph**, Wednesday, April 27, 2011 at 10:08pmsin(x-y)=sin(x)cos(y)-sin(y)cos(x)

Let y=pi/2

sin(x-pi/2)=sin(x)*0-1*cos(x)=-cos(x)

**Related Questions**

physics - A circular coil (980 turns, radius = 0.078 m) is rotating in a uniform...

Physics - need help with this problem :/ A circular coil (980 turns, radius = 0....

physics - can anyone please help me on this one? A circular coil (980 turns, ...

physics opinion - A common pickup for an electric guitar consists of a coil of ...

Trig - How do you express sin4x as a trigonometric funcition of x using the ...

Physics - A coil of wire with 200 circular turns of radius of 3 cm is in a ...

physics - Need help on which formulas I use to solve problems? A coil of wire ...

physics please help - In a physics laboratory experiment, a coil with 170 turns ...

Physics - An electric generator contains a coil of 100 turns of wire, each turn ...

Physics - A coil is made up of 19 square loops with the sides equal to 5.3 cm. ...