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

A coil of wire rotating in a magnetic field induces a coltage E=20sin((PIa/4) - (PI/2)). Use an identity to express this in terms of cos(PIa/4).

Types of Identities:

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

Thanks

## Answer This Question

## Related Questions

- Trig - How do you express sin4x as a trigonometric funcition of x using the ...
- Trigonometry - use the appropriate trig identity (sum and difference, half angle...
- MATH - 1.)Find the exact solution algebriacally, if possible: (PLEASE SHOW ALL ...
- Physics - A circular coil (660 turns, radius = 0.037 m) is rotating in a uniform...
- 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....
- TRIG/ALGEBRA - 1) Find the exact value. Use a sum or difference identity. tan (-...
- physics - can anyone please help me on this one? A circular coil (980 turns, ...
- Physics - a uniform magnetic field of strength 0.5T is directed at an angle of ...
- Math - use the sum and difference identities to find the cosine angle cos pi/9 ...

More Related Questions