Sunday

April 20, 2014

April 20, 2014

Posted by **Leslie** on Thursday, March 1, 2012 at 4:49pm.

1. ((x/4)-(1/x)) / ((1/2x)+(1/4))

VERIFY

1. secXsin2X = (2-2cos^2X)/sinX

- Math -
**Steve**, Thursday, March 1, 2012 at 5:15pm((x/4)-(1/x)) / ((1/2x)+(1/4))

((x^2-4)/4x) / ((2+x)/4x)

(x^2-4) / (x+2)

(x+2)(x-2)/(x+2)

x-2

secX*2sinXcosX = 2(1-cos^2X)/sinX

2sinX = 2sin^2X/sinX

2sinX = 2sinX

- Math -
**Leslie**, Thursday, March 1, 2012 at 5:20pmOMG thank you so much!

**Related Questions**

math- please help! - Please help with these 5 problems! I have the solutions but...

Trigonometry - How do you verify the equation is an identity? Tan^2x-tan^2y=sec^...

trig - verify the identity: tan^2x(1+cot^2x)=1/1-sin^2x Verify the Id: tanx + ...

math 12 - i know how to do the majority of these type of questions, but i dont ...

math - Simplify sin^2x+cos^2x+sec^2x -tan^2x+csc^2x-cot^2x

math - translate and simplify"six less than twice the sum of a number and three...

Math- Completely confused! - Simplify each expression (where possible) and ...

Math - pls. verify: 4x^3y^-2 / 2x^-1y^4 = 2x^4y^-6 [w^1 / w^-3]^-4 = 1/w^16

math - Hi guys I just need to simplify this equation and I keep eliminating all ...

Calculus AP - i wanna KNOW IF im DOING RIGHT. Evaluate the difference quotient ...