Posted by **SK** on Sunday, November 28, 2010 at 5:47pm.

Use the double angle formula to verify the identity cotxsin2x=1+cos2x

- trig -
**Anonymous**, Friday, November 8, 2013 at 1:53am
ぉしぞしぐしぉ

## Answer this Question

## Related Questions

- advanced functions - Use the Pythagorean identity to show that the double angle ...
- Trig - If sinx = 1/4 Find the exact value of cos2x I used the formula for double...
- math - sin2x-cotx = -cotxcos2x Using the various trigonometric identities(i.e. ...
- advanced functions - Use the Pythagorean Identify to show that the double angle ...
- ah trig help - use an apropriate sum or difference indentity to prove the double...
- Pre-Cal - 1) Verify the identity cos^2 B - sin^2 B = 2 cos^2 B -1 I know that ...
- Trigonometry - use the appropriate trig identity (sum and difference, half angle...
- trig - I keep trying to find the power reducing formula for sin^4(x), but I can'...
- trig - use an angel sum identity to verify cos2theta = -2cos^@-1
- trig - A coil of wire rotating in a magnetic field induces a coltage E=20sin((...